CN103521581B - Obtain method and the mould of mechanical performance gradient drop stamping part - Google Patents
Obtain method and the mould of mechanical performance gradient drop stamping part Download PDFInfo
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- CN103521581B CN103521581B CN201310503329.5A CN201310503329A CN103521581B CN 103521581 B CN103521581 B CN 103521581B CN 201310503329 A CN201310503329 A CN 201310503329A CN 103521581 B CN103521581 B CN 103521581B
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Abstract
The present invention relates to a kind of method and the mould that obtain mechanical performance gradient drop stamping part, its method comprises the following steps: S1, subregion coated ceramic thermal barrier coating at diel punch and die outer surface; S2, acquisition stamping parts blank; S3, blank is placed in heating furnace heats, make blank microstructure homogenization; S4, by heating after blank put into the diel that above-mentioned surface has ceramic heat-barrier coating, utilize forcing press to complete follow-up process for stamping and forming; The punch of its mould and the subregion of die outer surface are provided with ceramic heat-barrier coating.The present invention makes stamping parts zones of different have different phase constitution by ceramic coated thermal barrier coating, thus obtains mechanical performance gradient part, and then realizes many performance requirements of single component.This method not only simple and practical, be easy to realize, and effectively improve the phase constitution of stamping parts, can be used for multiple automobile panel and parts hot press-formed in, have broad application prospects.
Description
Technical field
The present invention relates to field of hot stamping forming, more particularly, relate to a kind of method and the mould that obtain mechanical performance gradient drop stamping part.
Background technology
Along with the deterioration of the ecological environment and energy shortage, energy-conservation, reduce discharging one of main development direction having become world today's China Automobile Industry, wherein high-strength steel sheet drop stamping technology is the lightweight realizing automobile, the effective way reaching energy-conservation, reduce discharging.Because high-strength steel sheet has higher mechanical strength, part quality can be alleviated by reducing the mode such as thickness of slab or sectional dimension under the prerequisite of guaranteed performance, thus automobile lightweight.Therefore its application in automotive field is more and more extensive.
Hot press-formed technology is a new technology being specifically designed to form high strength steel stamping part.Stamping parts obtained is by this method organized as martensite, intensity up to 1500MPa, and hot press-formed after almost there is no resilience.But the raising required along with automotive light weight technology and collision safety is a new developing direction with the drop stamping part that the mechanical performance gradient drop stamping part with different tissues substitutes traditional full martensitic structure.Mechanical performance gradient part refers to mechanical property a kind of new function part that each several part is different according to functional requirement.For B post, its ideal structure is that upper area has higher intensity to resist extraneous collision, and lower area then has lower intensity to absorb collision energy.Many performance requirements of single component, this is that traditional drop stamping part is beyond one's reach, and mechanical performance gradient part achieves the gradual change of mechanical property on single component, in fact just require in hot stamping operation, realize different shapings to different parts and become second nature, thus meet the collision safety performance under different demand.
Summary of the invention
The technical problem to be solved in the present invention is, provides a kind of method and the mould that obtain mechanical performance gradient drop stamping part.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of method obtaining mechanical performance gradient drop stamping part, comprise the following steps:
S1, subregion coated ceramic thermal barrier coating at diel punch and die outer surface;
S2, acquisition stamping parts blank;
S3, blank is placed in heating furnace heats, make blank microstructure homogenization;
S4, by heating after blank put into the diel that above-mentioned surface has ceramic heat-barrier coating, utilize forcing press to complete follow-up process for stamping and forming.
In the above-mentioned methods, described step S1 is further comprising the steps:
S11, spray metal bond coating: utilize plasma spraying technology, metallizing bond coating on hot stamping die, thickness is 0.1 ~ 0.2mm;
S12, ceramic coated surface layer: utilize plasma spraying technology, coated ceramic surface layer on described metal bond coating, thickness is 0.1 ~ 0.5mm.
In the above-mentioned methods, described metal bond coating is NiCoCrAlY, CoCrAlY or NiCoCrAlY.
In the above-mentioned methods, described ceramic topcoats is 6wt% ~ 8wt%Y
2o
3stable ZrO
2.
In the above-mentioned methods, in described step S3, described blank is warmed up to 900 ~ 950 DEG C, insulation 3 ~ 5min.
In the above-mentioned methods, described diel adopts hot forming dies materials.
In the above-mentioned methods, described stamping parts blank is processed by drop stamping steel plate, and drop stamping steel plate is after roll forming, and material structure is uniform ferrite and pearlite, and yield strength is 280MPa ~ 400MPa, and tensile strength is greater than 450Mpa; Quenching structure is uniform martensite, and tensile strength is 1400MPa ~ 2000MPa.
Present invention also offers a kind of mould obtaining mechanical performance gradient drop stamping part, comprise punch and die, the subregion of described punch and die outer surface is provided with ceramic heat-barrier coating.
In above-mentioned mould, described ceramic heat-barrier coating comprises metal bond coating and ceramic topcoats, described metal adhesive bottom is coated in the outer surface of described punch and die, described ceramic topcoats is on described metal adhesive bottom, described metal bond coating thickness is 0.1 ~ 0.2mm, and the thickness of described ceramic topcoats is 0.1 ~ 0.5mm.
In above-mentioned mould, described metal bond coating is NiCrAlY, CoCrAlY or NiCoCrAlY, and described ceramic topcoats is 6wt% ~ 8wt%Y
2o
3stable ZrO
2.
Implement method and the mould of acquisition mechanical performance gradient drop stamping part of the present invention, there is following beneficial effect:
At hot stamping die surface coated ceramic thermal barrier coating, and utilize this coating to obtain more low intensive region when heat-punch member quench to needs to be incubated, reduction cooling velocity, the phase constitution in this region is different from other position.
Make stamping parts zones of different have different phase constitution by ceramic coated thermal barrier coating, thus obtain mechanical performance gradient part, and then realize many performance requirements of single component.This method not only simple and practical, be easy to realize, and effectively improve the phase constitution of stamping parts, can be used for multiple automobile panel and parts hot press-formed in, have broad application prospects.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 a is the present invention's plasma arc generator coating used punch schematic diagram;
Fig. 1 b is the present invention's plasma arc generator coating used die schematic diagram;
Fig. 2 is hot stamping forming die sectional view of the present invention;
Fig. 3 is the partial enlarged drawing of hot stamping forming die convex mould of the present invention and die contact site;
The ceramic heat-barrier coating schematic diagram of Fig. 4 corresponding to punch of the present invention.
Detailed description of the invention
In order to there be understanding clearly to technical characteristic of the present invention, object and effect, now contrast accompanying drawing and describe the specific embodiment of the present invention in detail.
As shown in Fig. 1 a-Fig. 4, the method for acquisition mechanical performance gradient drop stamping part of the present invention comprises the following steps:
S1, subregion coated ceramic thermal barrier coating 8 at diel punch 3 and die 4 outer surface, hot forming dies materials is selected in diel.Here ceramic heat-barrier coating 8, generally refers to the coat system be made up of corrosion-resistant oxidation resistant metal adhesive bottom 10 and ceramic topcoats 9.
Step S1 is further comprising the steps: S11, spray metal bond coating 10: utilize plasma spraying technology, metallizing bond coating 10 on hot stamping die, and thickness is 0.1 ~ 0.2mm; S12, ceramic coated surface layer 9: utilize plasma spraying technology, coated ceramic surface layer 9 on metal bond coating 10, thickness is 0.1 ~ 0.5mm.As shown in Figure 1 a, 1 b, plasma arc generator 1 produces plasma arc 2, sprays.Plasma spraying is a kind of preferred coating method just, can also adopt the mode such as electro beam physics vapour deposition, HVAF, electrostatic spraying assisted vapor deposition.
Metal bond coating 10 can be NiCrAlY, CoCrAlY or NiCoCrAlY.Ceramic topcoats 9 is preferably 6wt% ~ 8wt%Y
2o
3stable ZrO
2, but it can also be Al
2o
3or doped Ce O
26wt% ~ 8wt%Y
2o
3stable ZrO
2.6wt% ~ 8wt%Y in the present embodiment
2o
3stable ZrO
2, specifically refer to Y
2o
3account for Y
2o
3and ZrO
26% ~ 8% of mixture gross mass.Such as, 6wt%Y is adopted
2o
3stable ZrO
2, then Y
2o
3quality be mixture gross mass 6%, ZrO
2quality be mixture gross mass 94%.
S2, acquisition stamping parts blank 6.Stamping parts blank 6 in the present embodiment is processed into required form by the drop stamping steel plate of high strength.Stamping parts blank 6 is processed by drop stamping steel plate, and drop stamping steel plate is after roll forming, and material structure is uniform ferrite and pearlite, and yield strength is 280MPa ~ 400MPa, and tensile strength is greater than 450Mpa; Quenching structure is uniform martensite, and tensile strength is 1400MPa ~ 2000MPa.
S3, blank 6 is placed in heating furnace heats, make blank 6 microstructure homogenization.Blank 6 is warmed up to 900 ~ 950 DEG C, and insulation 3 ~ 5min, to obtain uniform austenite structure.
S4, by heating after blank 6 put into the diel that above-mentioned surface has ceramic heat-barrier coating 8, utilize forcing press to complete follow-up process for stamping and forming.
Present invention also offers a kind of mould obtaining mechanical performance gradient drop stamping part, comprise punch 3 and die 4, the subregion of punch 3 and die 4 outer surface is provided with ceramic heat-barrier coating 8.The both sides of punch 3 are provided with blank holder 5, are provided with cooling-water duct 7 in punch 3 and die 4.
Further, ceramic heat-barrier coating 8 comprises metal bond coating 10 and ceramic topcoats 9, metal adhesive bottom 10 is coated in the outer surface of punch 3 and die 4, ceramic topcoats 9 is on metal adhesive bottom 10, metal bond coating 10 thickness is 0.1 ~ 0.2mm, and the thickness of ceramic topcoats 9 is 0.1 ~ 0.5mm.Metal bond coating 10 can be NiCrAlY, CoCrAlY or NiCoCrAlY.Ceramic topcoats 9 is preferably 6wt% ~ 8wt%Y
2o
3stable ZrO
2, but it can also be Al
2o
3or doped Ce O
26wt% ~ 8wt%Y
2o
3stable ZrO
2.
The present invention at hot stamping die surface coated ceramic thermal barrier coating 8, and utilizes this coating 8 to obtain more low intensive region when heat-punch member quench to needs to be incubated, and reduction cooling velocity, the phase constitution in this region is different from other position.Make stamping parts zones of different have different phase constitution by ceramic coated thermal barrier coating 8, thus obtain mechanical performance gradient part, and then realize many performance requirements of single component.This method not only simple and practical, be easy to realize, and effectively improve the phase constitution of stamping parts, can be used for multiple automobile panel and parts hot press-formed in, have broad application prospects.
Present invention also offers following specific embodiment:
Embodiment 1:
Method in the present invention is applied in the hot press-formed technique of B1500HS high-strength steel sheet.
S1, adopt following plasma spraying technology diel surface formed ceramic heat-barrier coating 8, this coating is made up of metal bond coating 10 and ceramic topcoats 9, and this process comprises two steps:
S11, spray metal bond coating 10: utilize plasma spraying technology, in the middle part of hot stamping die punch 3 and die 4 outer surface, apply NiCoCrAlY metal bond coating 10, thickness is 0.1mm.
S12, ceramic coated surface layer 9: utilize plasma spraying technology, NiCoCrAlY metal bond coating 10 applies 7%Y
2o
3stable ZrO
2ceramic topcoats 9, thickness is 0.1mm.
S2, B1500HS high-strength steel sheet is processed into the stamping parts blank 6 of 200mm × 60mm × 1.6mm; Under described high-strength steel sheet (after rolling) normal temperature, tensile strength is 500MPa ~ 600MPa.
S3, the blank 6 processed is placed in heating furnace, is warmed up to 900 DEG C, insulation 5min, makes microstructure homogenization.
S4, by heating after blank 6 put into the diel that above-mentioned surface has ceramic heat-barrier coating 8, utilize forcing press to complete follow-up process for stamping and forming.
By sampling the blank 6 after stamping and carrying out Metallographic Analysis and one directional tensile test finds, the zone line contacted with ceramic heat-barrier coating 8 obtains martensitic phase (about 94%)+ferritic phase+retained austenite after cooling, tensile strength is about 1300MPa.And the region do not contacted with ceramic heat-barrier coating 8 obtains after cooling is martensitic phase (about 97%)+retained austenite, tensile strength is about 1500MPa.That is, because ceramic heat-barrier coating 8 is very thin, so effect of heat insulation is not clearly, the mechanical performance gradient part strength change of gained is also not obvious.
Embodiment 2:
Method in the present invention is applied in the hot press-formed technique of B1500HS high-strength steel sheet.
S1, adopt following plasma spraying technology diel surface formed ceramic heat-barrier coating 8, this coating is made up of metal bond coating 10 and ceramic topcoats 9, and this process comprises two steps:
S11, spray metal bond coating 10: utilize plasma spraying technology, in the middle part of hot stamping die punch 3 and die 4 outer surface, apply NiCoCrAlY metal bond coating 10, thickness is 0.2mm.
S12, ceramic coated surface layer 9: utilize plasma spraying technology, NiCoCrAlY metal bond coating 10 applies 7%Y
2o
3stable ZrO
2ceramic topcoats 9, thickness is 0.1mm.
S2, B1500HS high-strength steel sheet is processed into the stamping parts blank 6 of 200mm × 60mm × 1.6mm; Under described high-strength steel sheet (after rolling) normal temperature, tensile strength is 500MPa ~ 600MPa.
S3, the blank 6 processed is placed in heating furnace, is warmed up to 900 DEG C, insulation 5min, makes microstructure homogenization.
S4, by heating after blank 6 put into the diel that above-mentioned surface has ceramic heat-barrier coating 8, utilize forcing press to complete follow-up process for stamping and forming.
By sampling the blank 6 after stamping and carrying out Metallographic Analysis and one directional tensile test finds, the zone line contacted with ceramic heat-barrier coating 8 obtains martensitic phase (about 90%)+ferritic phase+pearlite phase+retained austenite after cooling, tensile strength is about 1000MPa.And the region do not contacted with ceramic heat-barrier coating 8 obtains after cooling is martensitic phase (about 97%)+retained austenite, tensile strength is about 1500MPa.That is, the zone line generation non-fully martensite transfor mation contacted with ceramic heat-barrier coating 8, and there is complete martensite transfor mation in the region do not contacted with ceramic heat-barrier coating 8, therefore obtains required mechanical performance gradient part.Such utilization deforms when comparatively hypo-intense region is collided, thus increases the absorption of energy, the generation of being out of shape when simultaneously utilizing higher-strength region to reduce collision, thus the security performance of raising part.
Embodiment 3:
Method in the present invention is applied in the hot press-formed technique of 22MnB5 high-strength steel sheet.
S1, adopt following plasma spraying technology diel surface formed ceramic heat-barrier coating 8, this coating is made up of metal bond coating 10 and ceramic topcoats 9, and this process comprises two steps:
S11, spray metal bond coating 10: utilize plasma spraying technology, in the middle part of hot stamping die punch 3 and die 4 outer surface, apply NiCoCrAlY metal bond coating 10, thickness is 0.2mm.
S12, ceramic coated surface layer 9: utilize plasma spraying technology, NiCoCrAlY metal bond coating 10 applies 7%Y
2o
3stable ZrO
2ceramic topcoats 9, thickness is 0.3mm.
S2, B1500HS high-strength steel sheet is processed into the stamping parts blank 6 of 200mm × 60mm × 1.6mm; Under described high-strength steel sheet (after rolling) normal temperature, tensile strength is 500MPa ~ 600MPa.
S3, the blank 6 processed is placed in heating furnace, is warmed up to 920 DEG C, insulation 4min, makes microstructure homogenization.
S4, by heating after blank 6 put into the diel that above-mentioned surface has ceramic heat-barrier coating 8, utilize forcing press to complete follow-up process for stamping and forming.By sampling the blank 6 after stamping and carrying out Metallographic Analysis and one directional tensile test finds, the zone line contacted with ceramic heat-barrier coating 8 obtains martensitic phase (about 73%)+ferritic phase+pearlite phase+retained austenite after cooling, tensile strength is about 800MPa.And the region do not contacted with ceramic heat-barrier coating 8 obtains after cooling is martensitic phase (about 98%)+retained austenite, tensile strength is about 1500MPa.That is, the zone line generation non-fully martensite transfor mation contacted with ceramic heat-barrier coating 8, and there is complete martensite transfor mation in the region do not contacted with ceramic heat-barrier coating 8, therefore obtains required mechanical performance gradient part.Such utilization deforms when comparatively hypo-intense region is collided, thus increases the absorption of energy, the generation of being out of shape when simultaneously utilizing higher-strength region to reduce collision, thus the security performance of raising part.
Embodiment 4:
Method in the present invention is applied in the hot press-formed technique of 22MnB5 high-strength steel sheet.
S1, adopt following plasma spraying technology diel surface formed ceramic heat-barrier coating 8, this coating is made up of metal bond coating 10 and ceramic topcoats 9, and this process comprises two steps:
S11, spray metal bond coating 10: utilize plasma spraying technology, in the middle part of hot stamping die punch 3 and die 4 outer surface, apply NiCoCrAlY metal bond coating 10, thickness is 0.2mm.
S12, ceramic coated surface layer 9: utilize plasma spraying technology, NiCoCrAlY metal bond coating 10 applies 7%Y
2o
3stable ZrO
2, thickness is 0.5mm.
S2, B1500HS high-strength steel sheet is processed into the stamping parts blank 6 of 200mm × 60mm × 1.6mm; Under described high-strength steel sheet (after rolling) normal temperature, tensile strength is 500MPa ~ 600MPa.
S3, the blank 6 processed is placed in heating furnace, is warmed up to 920 DEG C, insulation 4min, makes microstructure homogenization.
S4, by heating after blank 6 put into the diel that above-mentioned surface has ceramic heat-barrier coating 8, utilize forcing press to complete follow-up process for stamping and forming.
By sampling the blank 6 after stamping and carrying out Metallographic Analysis and one directional tensile test finds, the zone line contacted with ceramic heat-barrier coating 8 obtains ferritic phase+pearlite phase+retained austenite after cooling, tensile strength is about 500MPa.And the region do not contacted with ceramic heat-barrier coating 8 obtains after cooling is martensitic phase (about 98%)+retained austenite, tensile strength is about 1300MPa.That is, there is not martensite transfor mation in the zone line contacted with ceramic heat-barrier coating 8, and complete martensite transfor mation occurs in the region do not contacted with ceramic heat-barrier coating 8, therefore obtains required mechanical performance gradient part.Such utilization deforms when comparatively hypo-intense region is collided, thus increases the absorption of energy, the generation of being out of shape when simultaneously utilizing higher-strength region to reduce collision, thus the security performance of raising part.
Embodiment 5:
Method in the present invention is applied in the hot press-formed technique of USIBOR1500 high-strength steel sheet.
S1, adopt following plasma spraying technology diel surface formed ceramic heat-barrier coating 8, this coating is made up of metal bond coating 10 and ceramic topcoats 9, and this process comprises two steps:
S11, spray metal bond coating 10: utilize plasma spraying technology, in the middle part of hot stamping die punch 3 and die 4 outer surface, apply NiCoCrAlY metal bond coating 10, thickness is 0.1mm.
S12, ceramic coated surface layer 9: utilize plasma spraying technology, NiCoCrAlY metal bond coating 10 applies 7%Y
2o
3stable ZrO
2ceramic topcoats 9, thickness is 0.1mm.
S2, USIBOR1500 high-strength steel sheet is processed into the stamping parts blank 6 of 200mm × 60mm × 1.6mm; Under described high-strength steel sheet (after rolling) normal temperature, tensile strength is greater than 450MPa.
S3, the blank 6 processed is placed in heating furnace, is warmed up to 950 DEG C, insulation 3min, makes microstructure homogenization.
S4, by heating after blank 6 put into the diel that above-mentioned surface has ceramic heat-barrier coating 8, utilize forcing press to complete follow-up process for stamping and forming.
By sampling the blank 6 after stamping and carry out Metallographic Analysis discovery, the zone line contacted with ceramic heat-barrier coating 8 obtains martensitic phase (about 92%)+ferritic phase+pearlite phase+retained austenite after cooling, tensile strength is about 1200MPa.And the region do not contacted with ceramic heat-barrier coating 8 obtains after cooling is more uniform martensitic phase, tensile strength is about 1500MPa.That is, the zone line generation non-fully martensite transfor mation contacted with ceramic heat-barrier coating 8, and there is complete martensite transfor mation in the region do not contacted with ceramic heat-barrier coating 8, therefore obtains required mechanical performance gradient part.Such utilization deforms when comparatively hypo-intense region is collided, thus increases the absorption of energy, the generation of being out of shape when simultaneously utilizing higher-strength region to reduce collision, thus the security performance of raising part.
Embodiment 6:
Method in the present invention is applied in the hot press-formed technique of USIBOR1500 high-strength steel sheet.
S1, adopt following plasma spraying technology diel surface formed ceramic heat-barrier coating 8, this coating is made up of metal bond coating 10 and ceramic topcoats 9, and this process comprises two steps:
S11, spray metal bond coating 10: utilize plasma spraying technology, in the middle part of hot stamping die punch 3 and die 4 outer surface, apply NiCoCrAlY metal bond coating 10, thickness is 0.2mm.
S12, ceramic coated surface layer 9: utilize plasma spraying technology, NiCoCrAlY metal bond coating 10 applies 7%Y
2o
3stable ZrO
2ceramic topcoats 9, thickness is 0.5mm.
S2, USIBOR1500 high-strength steel sheet is processed into the stamping parts blank 6 of 200mm × 60mm × 1.6mm; Under described high-strength steel sheet (after rolling) normal temperature, tensile strength is greater than 450MPa.
S3, the blank 6 processed is placed in heating furnace, is warmed up to 950 DEG C, insulation 3min, makes microstructure homogenization.
S4, by heating after blank 6 put into the diel that above-mentioned surface has ceramic heat-barrier coating 8, utilize forcing press to complete follow-up process for stamping and forming.
By sampling the blank 6 after stamping and carrying out Metallographic Analysis and one directional tensile test finds, the zone line contacted with ceramic heat-barrier coating 8 obtains ferritic phase+pearlite phase+retained austenite after cooling, tensile strength is about 500MPa.And the region do not contacted with ceramic heat-barrier coating 8 obtains after cooling is more uniform martensitic phase, tensile strength is about 1500MPa.That is, there is not martensite transfor mation in the zone line contacted with ceramic heat-barrier coating 8, and complete martensite transfor mation occurs in the region do not contacted with ceramic heat-barrier coating 8, therefore obtains required mechanical performance gradient part.Such utilization deforms when comparatively hypo-intense region is collided, thus increases the absorption of energy, the generation of being out of shape when simultaneously utilizing higher-strength region to reduce collision, thus the security performance of raising part.
By reference to the accompanying drawings embodiments of the invention are described above; but the present invention is not limited to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is only schematic; instead of it is restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that present inventive concept and claim protect, also can make a lot of form, these all belong within protection of the present invention.
Claims (7)
1. obtain a method for mechanical performance gradient drop stamping part, it is characterized in that, comprise the following steps:
S1, subregion coated ceramic thermal barrier coating at diel punch and die outer surface;
S2, acquisition stamping parts blank;
S3, blank is placed in heating furnace heats, make blank microstructure homogenization;
S4, by heating after blank put into the diel that above-mentioned surface has ceramic heat-barrier coating, utilize forcing press to complete follow-up process for stamping and forming;
Described step S1 is further comprising the steps:
S11, spray metal bond coating: utilize plasma spraying technology, metallizing bond coating on hot stamping die, described metal bond coating is NiCrAlY, CoCrAlY or NiCoCrAlY;
S12, ceramic coated surface layer: utilize plasma spraying technology, coated ceramic surface layer on described metal bond coating, described ceramic topcoats is 6wt% ~ 8wt%Y
2o
3stable ZrO
2.
2. the method for acquisition mechanical performance gradient drop stamping part according to claim 1, is characterized in that, described metal bond coating thickness is 0.1 ~ 0.2mm; Described ceramic topcoats thickness is 0.1 ~ 0.5mm.
3. the method for acquisition mechanical performance gradient drop stamping part according to claim 1, it is characterized in that, in described step S3, described blank is warmed up to 900 ~ 950 DEG C, insulation 3 ~ 5min.
4. the method for acquisition mechanical performance gradient drop stamping part according to claim 1, is characterized in that, described diel adopts hot forming dies materials.
5. the method for acquisition mechanical performance gradient drop stamping part according to claim 1, it is characterized in that, described stamping parts blank is processed by drop stamping steel plate, drop stamping steel plate is after roll forming, material structure is uniform ferrite and pearlite, yield strength is 280MPa ~ 400MPa, and tensile strength is greater than 450Mpa; Quenching structure is uniform martensite, and tensile strength is 1400MPa ~ 2000MPa.
6. obtain a mould for mechanical performance gradient drop stamping part, comprise punch and die, it is characterized in that, the subregion of described punch and die outer surface is provided with ceramic heat-barrier coating; Described ceramic heat-barrier coating comprises metal bond coating and ceramic topcoats, described metal adhesive bottom is coated in the outer surface of described punch and die, described ceramic topcoats is on described metal adhesive bottom, described metal bond coating is NiCrAlY, CoCrAlY or NiCoCrAlY, and described ceramic topcoats is 6wt% ~ 8wt%Y
2o
3stable ZrO
2.
7. the mould of acquisition mechanical performance gradient drop stamping part according to claim 6, is characterized in that, described metal bond coating thickness is 0.1 ~ 0.2mm, and the thickness of described ceramic topcoats is 0.1 ~ 0.5mm.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4475975A (en) * | 1980-12-19 | 1984-10-09 | General Motors Corporation | Decorating coated aluminum for extrusion encapsulation |
| CN102453796A (en) * | 2010-10-15 | 2012-05-16 | 本特勒尔汽车技术有限公司 | Automobile column and method for producing a hot-formed and press-hardened automobile column |
| CN102481613A (en) * | 2009-09-01 | 2012-05-30 | 蒂森克虏伯钢铁欧洲股份公司 | Method and device for producing a metal component |
-
2013
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4475975A (en) * | 1980-12-19 | 1984-10-09 | General Motors Corporation | Decorating coated aluminum for extrusion encapsulation |
| CN102481613A (en) * | 2009-09-01 | 2012-05-30 | 蒂森克虏伯钢铁欧洲股份公司 | Method and device for producing a metal component |
| CN102453796A (en) * | 2010-10-15 | 2012-05-16 | 本特勒尔汽车技术有限公司 | Automobile column and method for producing a hot-formed and press-hardened automobile column |
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