CN101670439A - Method for producing a workpiece from composite material and workpiece made of composite material - Google Patents
Method for producing a workpiece from composite material and workpiece made of composite material Download PDFInfo
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- CN101670439A CN101670439A CN200910174376A CN200910174376A CN101670439A CN 101670439 A CN101670439 A CN 101670439A CN 200910174376 A CN200910174376 A CN 200910174376A CN 200910174376 A CN200910174376 A CN 200910174376A CN 101670439 A CN101670439 A CN 101670439A
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- 239000002131 composite material Substances 0.000 title claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 239000000463 material Substances 0.000 claims abstract description 69
- 238000000034 method Methods 0.000 claims abstract description 69
- 238000005245 sintering Methods 0.000 claims abstract description 49
- 230000008569 process Effects 0.000 claims abstract description 33
- 229910052751 metal Inorganic materials 0.000 claims description 29
- 239000002184 metal Substances 0.000 claims description 29
- 238000009792 diffusion process Methods 0.000 claims description 12
- 238000005516 engineering process Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 7
- 230000008602 contraction Effects 0.000 claims description 6
- 238000005272 metallurgy Methods 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- 239000011195 cermet Substances 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims description 2
- 238000005520 cutting process Methods 0.000 claims description 2
- 238000004512 die casting Methods 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims description 2
- 239000012255 powdered metal Substances 0.000 claims 2
- 238000012545 processing Methods 0.000 abstract description 8
- 239000000126 substance Substances 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 18
- 239000010959 steel Substances 0.000 description 18
- 230000002349 favourable effect Effects 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 3
- 238000005219 brazing Methods 0.000 description 3
- 230000002950 deficient Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000005476 soldering Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002905 metal composite material Substances 0.000 description 2
- 230000002277 temperature effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000004482 other powder Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
- B22F7/062—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools involving the connection or repairing of preformed parts
Abstract
The present invention relates to a method for producing a workpiece from composite material and the workpiece made of the composite material. According to the method of the invention, a first originalcomponent (10) is produced with sintered material. The first original component (10) has a shape of partially compacted sintered component, green component or brown component. The original componentis not compacted or not compacted totally through a sintering process. Additionally, according to the method of the invention, at least one second original component (20) is provided, which is at least partially added into a chamber (15) of the first original component (10), and preferably matched with clearance. Then the sintering process is performed, and the original components (10, 20) are executed with a constant-temperature processing in the process. A connection (30) between the original components (10, 20) is generated in the chamber (15) which is at least partially filled by the second original component (20). As the connection (30) is formed through the chemical connection between the original components (10, 20) through a form of material combination, the material combination isgenerated at a position where the two original components (10, 20) compact with each other.
Description
Technical field
The present invention relates to a kind of be used to the to process method of the part of making by composite and the part of making by composite of processing especially according to the method.
Background technology
Composite provides possibility and advantage, makes different material family combinations and obtains having the parts of comparing outstanding characteristic with basic material by this way.Especially meaningfully make the steel matrix combination of hard, anti abrasive material (hard metal, cermet, pottery) and high tenacity and ductility for many application.
Connection by the power combination for a long time as clamp, bolt connection or hot charging or the also connection by the material combination such as soldering, welding, bonding or cast realize hard metal and steel engages.
There are defective in clamping and hot charging, do not have the connection of form fit between two parts.If extruding force is too little or along with the time reduces, then may cause the separation of two parts.It also is quite high that bolt connects the corresponding processing charges only be only applicable to sizable part and be used for machining hole and screw thread here.Other defective is that the stress on bolt connects is concentrated, and they may cause just losing efficacy before self load that reaches each material.This outer bolt connects may be because vibration or repeated loading be loosening.
Although in soldering, welding, bonding or pouring procedure, between different materials, realize the connection of material combination.But because cemented side seam is a weak spot in the metallographic structure with wanting combined material parafacies to make this connection than most visibly different material behavior.Said method is with significantly the process technology expense is expensive relevant with part in addition.
For the known diverse ways that under condition, is used for Diffusion Welding that is connected of the material combination between machined steel and the hard metal, for example as described in patent documentation DE 10104632 C2 by means of soft thin plate (preferably copper or nickel).But Diffusion Welding is confined to the simple geometric shape in connecting the plane and requires the very high surface quality of connected workpiece.
In patent application EP 630713 A1 and EP 810051 A1, described and be used to make steel and hard metal parts method by means of the different high temperature fluxes diffusion brazing of powder or paste.Confirmed that at this soldering connection compares the defective of small intensity with stock, stock must be partly by additional power or form fit compensation.Compensation that can only be limited is because the mechanical stress that variations in temperature causes in addition.
A kind of steel-hard metallic composite roll that is used for the cold rolled metal plate of suggestion in patent application EP 1625896 A1.Utilize vacuum-sintering or thermal balance extruding to realize having the complex of high temperature resistant impact by steel core and hard metal outer.Between steel core and hard metal outer, apply a thin cermet intermediate layer at this.This intermediate layer forms steel core and is connected with metal metallurgy smelting between the hard metal under temperature effect.
Summary of the invention
The objective of the invention is, advise a kind of method, the part of different materials, especially steel and hard metal parts are interconnected not using under other ancillary method, the condition as brazing material, intermediate layer or mechanical fixation by it.
The present invention also aims to propose a kind of part of making by composite in addition, especially by hard, anti abrasive material with have high tenacity and compound that the material of ductility is formed.
These purposes according to the present invention by being used to process the method for the part of making by composite and being achieved by the part that composite is made corresponding to the described feature of independent claims characteristic, a kind of.
Make first primitive part according to method regulation of the present invention by agglomerated material.This first primitive part occurs with the sintered part(s) of part compacting, green parts or brown component form.This primitive part does not also have or does not have complete compacting in view of the above, for example passes through sintering process.Stipulate at least one second primitive part according to method of the present invention in addition, it joins the cavity the inside of first primitive part at least in part, preferably with matched in clearance.Then carry out sintering process, in this process, make primitive part compacting under temperature effect.In this connection between the generation primitive part in the cavity of filling by second primitive part at least in part.Because the chemistry between the primitive part material connects, especially the atom bonding constitutes this connection with the form of material combination.Be in the position that is in contact with one another at two primitive parts and produce the material combination.
Preferably the sintering of being expected by at least the first primitive part shrinks two contact structures that primitive part is mutual of assurance during sintering process.Exist sintering to shrink, also eliminate the matched in clearance of two primitive parts that before sintering process, occur thus.Be reduced by at least the porosity and the volume of first primitive part by sintering process.Second primitive part is for preferably having the theoretic size of crossing by the cavity of first primitive part of its filling at least in part when forming contact.This crosses size by the compensation of the material transfer during the sintering process, and this helps evenly and fully producing the connection of two primitive parts more.
This material is in conjunction with the highly stable connection that greatly helps primitive part.Especially owing under sintering temperature, enliven the material transfer of generation because the formation that the mobile realization chemistry of diffusion, creep process and viscous or plasticity is connected.No longer need other ancillary method for the connection of primitive part, especially form in an advantageous manner with the material combination.
Advantage is in addition, realizes that in a processing step compacting and the generation of the material of at least the first primitive part connects.Therefore the present invention can make two processing step compactings and engage steel-hard metal composite and make up mutually.This greatly helps to reduce component costs.With common that the heater block hot charging is different on the parts of not heating, make all primitive parts be in identical sintering temperature in addition according to the present invention.Do not produce the material failure of the primitive part that causes by thermal shock thus in an advantageous manner at link position.
Can be implemented in the favourable improvement project and the improvement of the feature that provides in the independent claims by the measure of describing in the dependent claims.
For example this method modification stipulates that additionally the form with interference fit constitutes described connection.Especially after the sintering process in when cooling because the different heat expansion coefficient of primitive part material produces interference fit.To have the coefficient of expansion bigger at this first primitive part than all the other primitive parts.Therefore first primitive part appears than the bigger contraction of at least the second primitive part when cooling.
Because new method do not need low-melting brazing material, the therefore composite of making the according to the method connection that when high temperature, also has high degree of mechanical stability.This composite can be as the part material that uses there in many application.This part of being made by composite can be used for dissimilar wearing terrains, and wherein being connected with the steel part or with the material fit of the part of being made by other material is favourable (for example boring and cutting tool, roll, pump parts).It is contemplated that equally in automotive field (for example spraying technique, exhaust-driven turbo-charger exhaust-gas turbo charger, rolling bearing, decelerator) the inside and use as the high-mechanic assembly.
Description of drawings
Provide other advantage of the present invention, feature and details by following preferred embodiment description and by means of accompanying drawing.In the accompanying drawing:
Fig. 1 illustrates steel-hard composite metal before the sintering with schematic diagram,
Fig. 2 illustrates the steel-hard composite component of composite metal behind sintering among Fig. 1.
The specific embodiment
Fig. 1 illustrates corresponding to the steel before the sintering-hard composite metal according to the inventive method with schematic diagram.
Represent first primitive part at this with 10.This primitive part 10 is by agglomerated material, preferably the agglomerated material of porous is formed.Present uncompacted state, preferred uncompacted state at least in part at this agglomerated material.This means that first primitive part 10 does not also have or do not obtain sintering processes by heat treatment fully.The sintered part(s) that common not compacting presents is also referred to as green parts (Gruenteil) (passing through organic bonding) or brown parts (Braunteil) (not adhering state).
First primitive part 10 is made of hollow cylinder in Fig. 1.Usually can realize component shape arbitrarily for first primitive part 10, wherein it has at least one cavity 15.This cavity 15 is the endoporus with hollow cylinder inner surface 11 in first primitive part 10 shown in Figure 1.Cavity 15 the insides at first primitive part 10 add second primitive part 20 at least partly.The outline of second primitive part 20 and the interior profile of cavity 15 are complementally constituted.Therefore, constitute with cylinder in cavity 15 inside at second primitive part 20 shown in Fig. 1 with outer surface 21.Also can realize a cavity 15 at this, second primitive part 20 is surrounded by first primitive part 10 all sidedly therein.
Preferred embodiment among Fig. 1 is in the cavity 15 inner matched in clearance that exist between first and second primitive part 10,20.Between the outer surface 21 of the inner surface 11 of first primitive part 10 and second primitive part 20, there is gap 16 in this case.
Make primitive part 10 and 20 then be in sintering process in this state.First primitive part 10 shrinks and also reduces volume thus during Temperature Treatment.Make the agglomerated material of first primitive part 10 obtain compacting generally thus.In this regulation, make the sintering contraction of first primitive part 10 big like this, the feasible gap of getting rid of between inner surface 11 and the outer surface 21 16.Shrink by sintering and will guarantee two primitive parts 10 and 20 contact.
Steel among Fig. 1 shown in Figure 2-hard composite component 50 of metallic composite behind sintering.Sintering by first primitive part 10 especially shrinks the inner surface 11 of first primitive part 10 and the outer surface 21 of second primitive part 20 is in contact with one another.
On the position that primitive part 10,20 is in contact with one another, produced the connection 30 of material combining form at this in composite component 50 the insides.Because the heat treatment when sintering process is in contact with one another generation active material transfer in position at primitive part 10 and 20 the insides at it.The reason of material transfer is that diffusion, creep process and viscosity or plasticity flow.This chemistry that causes forming at contact position between the material of primitive part 10 and 20 connects.The best geometry that additionally also helps surface 11 and 21 thus more cooperates.
In order to guarantee the material combination, make before sintering or during the sintering and remove the oxide layer that in connection 30 positions, exists under the condition of the sintering atmosphere of reducing.
Additionally in the composite component 50 of Fig. 2, produced the connection 30 of interference fit form.By selecting to have first primitive part 10, when after sintering process, cooling off thus first primitive part 10 is compared with at least the second primitive part 20 and presented bigger contraction than thermal coefficient of expansion bigger in second primitive part 20.By consequent interference fit inner surface 11 and outer surface 21 also are close to well mutually when having less unevenness, are guaranteed that thus primitive part 10 is being connected contacting fully and uniformly on 30 with 20.When the surface roughness Rz of primitive part＜100 μ m, realize contact especially uniformly.Also can be chosen in to connect in 30 and have interference fits later on or only make primitive part 10 and 20 local each other contacts in sintering process.
Be noted that the too serious offense size of when interference fit, avoiding second primitive part 20.Otherwise this may cause hindering first primitive part 10 compacting diametrically.The result is the distortion distortion that possible cause first primitive part 10.Two primitive parts 10 and 20 be connected and 30 should just produce when sintering process finishes were as far as possible especially forming under the size situation by second primitive part 20 during the sintering process thus.。At this matched in clearance of two primitive parts 10,20 and the sintering that will the expect contraction by sintering process primitive part 10,20 are mated.
Sintering process is realized on preferred no pressure ground.As mentioned above, realize highly stable connection between the primitive part according to the present invention in the unusual favourable mode of cost thus.Also can use other sintering process in addition, as the sintering of pressure sintering, vacuum-sintering, thermal balance extruding and magnetic field support.Can especially the pressure support add the bigger compacting of realization agglomerated material and the composite component surface quality of improvement thus generally.But the processing charges with higher is relevant thus in principle.
According to the embodiment of method of the present invention for second primitive part, 20 regulations with material, especially metal compacting, that make to the agglomerated material state of small part compacting or pottery or deposite metal metallurgy.Also can select to make second primitive part 20 to present with green parts or brown parts by agglomerated material.
Preferably stipulate according to the present invention, make by steel and hard metal composite component 50 material to constitute by primitive part 10 and 20.
Especially have Fe-as the agglomerated material suggestion that is used for first and/or second primitive part 10 and 20, the hard metal of WC of Ni-or Co-bonded metal (about 6-20 percentage by weight), wherein they can contain Ti, Ta, the additional carbide of V or Nb base.Can use sintered steel equally.Except above-mentioned agglomerated material, also advise the agglomerated material that substitutes made by the material that ceramic hard material, cermet or deposite metal metallurgy are made.Preferred steel of considering to have carbon content 〉=0.5 percentage by weight, 100Cr6 for example, X65Cr13.Excessive carbon spreads during can being suppressed at sintering process thus, does not make steel in its characteristic upper variation thus.
Preferably by the powder technology method, for example utilize powder die-casting to realize the processing of the primitive part 10,20 made by agglomerated material.In an advantageous manner can be by this method processed complex in enormous quantities and near the part of net shape.Also advantageously, can regulate the mutual shrinkage character of two primitive parts 10,20 for first and second primitive parts 10,20 as green parts or brown parts.Therefore guarantee by separately polymer component in first primitive part, 10 neutralizations, second primitive part 20 that first primitive part 10 has the contractility bigger than second primitive part 20.Also can selectively make second primitive part 20 contain marginal layer with higher bonded metal content (＞20 percentage by weight).May use bicomponent material or coating thus. Primitive part 10,20 mutual thermal coefficient of expansions are mated best.Can use other powder technology technology equally in order to process the primitive part of making by agglomerated material 10,20, as extruding or single shaft extruding or balanced extruding.
Usually by the concentrated gradient of material exchange owing to each the existing alloying element that diffuses to form primitive part 10,20 materials in diffusion region 31.Connecting 30 the insides and continuing in primitive part 10 and 20, to constitute diffusion region 31 therefrom at this.Owing to concentrate gradient to constitute other material phase in 31 the insides in the diffusion region.For example under steel and the hard material situation of metal, may form so-called η phase (M as primitive part 10,20
6C or M
12C).But this phase is the mechanical property variation that is highly brittle and may make connection 30.Therefore be devoted to very narrow diffusion region 31, be used to make form this phase and keep small or avoid.Form great diffusion region 31, exert one's influence by regulating sintering duration and sintering temperature.
Except η also may form liquid phase according to the component of the material of primitive part 10,20 in connection 30 the insides mutually.Although this generally causes completely and imporous connection, this liquation is crisp mostly after curing and does not therefore expect.
According to method general provision of the present invention, after sintering process, during cooling procedure, carry out the maintenance level of a plurality of isothermals for the natural stress that reduces composite component 50 the insides.This natural stress may not produce simultaneously at primitive part 10,20 thermal coefficient of expansions during cooling procedure very much.For example, steel has about 11-12 * 10
-6The thermal coefficient of expansion of/K, hard metal has about 5-6 * 10
-6The thermal coefficient of expansion of/K.The radial contraction of steel primitive part 10 causes at the compressive stress by hard metal second primitive part 20 inside at this.This compression at first since the high resistance to pressure of hard metal be without a doubt or or even favourable.But also produce axial stress, they may cause hard metal to lose efficacy.A plurality of isothermal retention times are played the effect that correspondingly helps reducing natural stress during cooling procedure.
Claims (18)
1. method that is used to process the part of making by composite (50), this part has first primitive part of being made by agglomerated material (10), wherein first primitive part (10) is with the sintered part(s) of part compacting, the form of green parts or brown parts occurs, it is characterized in that, at least one second primitive part (20) is joined at least in part cavity (15) the inside of first primitive part (10), and two primitive parts (10 of sintering, 20), in the cavity (15) of filling by second primitive part (20) at least in part, produce primitive part (10 then, 20) connection between (30), wherein because the form that the chemistry between primitive part (10, the 20) material connects with the material combination constitutes this connection (30).
2. the method for claim 1 is characterized in that, because the bigger contraction of first primitive part (10) additionally constitutes described connection (30) with the form of interference fit.
3. method as claimed in claim 2 is characterized in that, phase ground keeps the material combination in the middle of the scope the inside that connects (30) constitutes diffusion region (31) and do not form substantially thus, wherein regulates the size of diffusion region (31) by sintering duration.
4. as each described method in the claim 1 to 3, it is characterized in that, when sintering process finishes, constitute described connection (30) to a great extent.
5. as each described method in the claim 1 to 3, it is characterized in that at least the first primitive part (10) is made by the powdered-metal metallurgical technology.
6. method as claimed in claim 5 is characterized in that, uses powder die-casting, extrudes or single shaft extruding or balanced extruding as the powdered-metal metallurgical technology.
7. as each described method in the claim 1 to 3, it is characterized in that, removing the oxide layer that exists in the scope that is connecting (30) under the sintering atmosphere of reduction before sintering or during the sintering.
8. as each described method in the claim 1 to 7, it is characterized in that, a plurality of isothermals maintenance levels are being set during cooling procedure after the sintering process.
9. part of making by composite, has first primitive part of making by agglomerated material (10), it is characterized in that, make at least one second primitive part (20) be at least partially disposed on cavity (15) the inside of first primitive part (10), composite component after sintering process (50) has a kind of connection (30) in cavity (15) the inside of being filled by second primitive part (20) at least in part, this connection (30) is because the chemistry between the material of primitive part (10,20) connects the form formation with the material combination.
10. part as claimed in claim 9 is characterized in that, described connection (30) additionally constitutes with the form of the mutual interference fit of primitive part (10,20).
11., it is characterized in that described material is in conjunction with the middle phase that does not have basically to form as each described part in the claim 9 to 10.
12., it is characterized in that at least the first primitive part (10) is the part that powder technology is made as each described part in the claim 9 to 10.
13., it is characterized in that the material that at least the second primitive part (20) is made by agglomerated material, ceramic hard material, cermet or deposite metal metallurgy is formed as each described part in the claim 9 to 10.
14. part as claimed in claim 13 is characterized in that, described at least the second primitive part (20) is made up of metal.
15. as each described part in the claim 9 to 10, it is characterized in that, described agglomerated material is to have Fe-, the material that the hard metal of WC, ceramet, pottery or the deposite metal metallurgy of Ni-or Co-bonded metal (about 6-20 percentage by weight) is made in first primitive part (10) and/or second primitive part (20).
16. corresponding to as the described part of claim 1 to 15 (50) as anti abrasive part and/or in the use of automotive field as the part of high-mechanic.
17. use as claimed in claim 16 is characterized in that, described part (50) is used as boring and cutting tool, as roll or pump parts.
18. use as claimed in claim 16 is characterized in that, described part (50) is used as the high-mechanic part in spraying technique, in exhaust-driven turbo-charger exhaust-gas turbo charger, in rolling bearing or in decelerator.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200810042065 DE102008042065A1 (en) | 2008-09-12 | 2008-09-12 | Method for producing a component from a composite material and component from a composite material |
| DE102008042065.4 | 2008-09-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101670439A true CN101670439A (en) | 2010-03-17 |
Family
ID=41134527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910174376A Pending CN101670439A (en) | 2008-09-12 | 2009-09-11 | Method for producing a workpiece from composite material and workpiece made of composite material |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2165790A1 (en) |
| CN (1) | CN101670439A (en) |
| DE (1) | DE102008042065A1 (en) |
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| DE102012017040A1 (en) * | 2012-08-29 | 2014-03-27 | Gkn Sinter Metals Holding Gmbh | Method for producing a composite component and a composite component |
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| DE102018219191A1 (en) | 2018-11-09 | 2020-05-28 | Volkswagen Aktiengesellschaft | Method for producing a composite material component from at least two component components and composite material component from at least two component components |
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| SE545894C2 (en) * | 2021-06-22 | 2024-03-05 | Sandvik Machining Solutions Ab | Method for manufacturing an article comprising cemented carbide and an inserted object |
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| IL62342A (en) * | 1981-03-10 | 1983-12-30 | Iscar Ltd | Method of bonding cemented carbide bodies and composite hard metal products manufactured thereby |
| GB2153850B (en) * | 1984-02-07 | 1987-08-12 | Nippon Piston Ring Co Ltd | Method of manufacturing a camshaft |
| JPS63125602A (en) * | 1986-11-12 | 1988-05-28 | Sumitomo Electric Ind Ltd | Hard alloy for tool |
| DE4321143A1 (en) | 1993-06-25 | 1995-01-05 | Saar Hartmetall & Werkzeuge | Composite body, consisting of materials with different thermal and mechanical properties |
| DE19621952A1 (en) | 1996-05-31 | 1997-12-04 | Peter Dipl Ing Maerzheuser | Composite element and method for its production |
| GB2343682B (en) * | 1998-09-16 | 2001-03-14 | Hitachi Powdered Metals | Manufacturing method of sintered composite machine component having inner part and outer part |
| DE10006734C1 (en) | 2000-02-16 | 2001-10-11 | Joerg Killguss | Process for joining two metals used in the production of crushing tools comprises surrounding the metal and/or hard metal with a foil, partially applying a soft sheet around the foil |
| DE602004018309D1 (en) | 2004-08-12 | 2009-01-22 | Hitachi Metals Ltd | Hard metal composite roll for strip rolling |
-
2008
- 2008-09-12 DE DE200810042065 patent/DE102008042065A1/en not_active Ceased
-
2009
- 2009-08-19 EP EP09168127A patent/EP2165790A1/en not_active Withdrawn
- 2009-09-11 CN CN200910174376A patent/CN101670439A/en active Pending
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| CN102389962A (en) * | 2011-11-22 | 2012-03-28 | 北京科技大学 | Particle infiltration casting process for preparing hard alloy/steel laminated composite material |
| CN102389962B (en) * | 2011-11-22 | 2014-12-24 | 北京科技大学 | Particle infiltration casting process for preparing hard alloy/steel laminated composite material |
| CN104520032A (en) * | 2012-07-31 | 2015-04-15 | Fl史密斯公司 | Method for producing a wear-resistant component |
| CN103978220A (en) * | 2014-05-29 | 2014-08-13 | 哈尔滨工具厂 | Composite component powder metallurgical high speed steel and preparation method thereof |
| CN105935775A (en) * | 2015-03-06 | 2016-09-14 | Gkn烧结金属有限公司 | Method adopting sintering for associating production of composite assembly containing brass or bronze |
| US11105369B2 (en) | 2015-03-06 | 2021-08-31 | Gkn Sinter Metals, Llc | Method of producing composite component having brass or bronze using sinter fit |
| CN107848030A (en) * | 2015-07-24 | 2018-03-27 | 罗伯特·博世有限公司 | The method of the drip molding of coating and the drip molding for manufacturing coating |
| CN108526471A (en) * | 2018-06-11 | 2018-09-14 | 陕西华夏粉末冶金有限责任公司 | A kind of preparation method of ferrous based powder metallurgical friction pulley |
| CN112752628A (en) * | 2018-09-27 | 2021-05-04 | 西门子股份公司 | Method for sintering a multi-component sintered product, electric machine and electric vehicle |
| CN112752628B (en) * | 2018-09-27 | 2023-09-15 | 西门子股份公司 | Method for sintering a multi-component sintered product, motor and electric vehicle |
| CN109604609A (en) * | 2018-11-20 | 2019-04-12 | 广州市光铭金属制品有限责任公司 | A kind of duplicate gear product assembling sintering process |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2165790A1 (en) | 2010-03-24 |
| DE102008042065A1 (en) | 2010-03-25 |
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