CN101935744A - Method for sizing metal material mechanical part by phase change superplasticity - Google Patents
Method for sizing metal material mechanical part by phase change superplasticity Download PDFInfo
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- CN101935744A CN101935744A CN 201010299718 CN201010299718A CN101935744A CN 101935744 A CN101935744 A CN 101935744A CN 201010299718 CN201010299718 CN 201010299718 CN 201010299718 A CN201010299718 A CN 201010299718A CN 101935744 A CN101935744 A CN 101935744A
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Abstract
The invention discloses a method for sizing metal material mechanical parts by phase change superplasticity, relating to a method for sizing metal material mechanical parts. The invention solves the problems of high manufacturing cost and long manufacturing time existing in the sizing method. The method for sizing comprises the following steps: installing a part to be sized under the quenching state in technical equipment; applying durability on the sized part by the technical equipment; fixing the part of the sized part, which exceeds tolerance, into qualified size tolerance range; putting the sized part and the technical equipment into a tempering furnace for tempering heat treatment of normal technical process; generating phase change of the sized part in the tempering heat treatment process; utilizing the superplasticity of metal phase change to cause the sized parts to generate plastic distortion required by sizing under the action of durability; and after the tempering heat treatment process ends, removing the technical equipment to obtain the part with qualified size tolerance. The invention is suitable for sizing the material mechanical parts after phase change heat treatment.
Description
Technical field
The present invention relates to a kind of straightening method of metallic substance mechanical component, be specifically related to a kind of transformation superplasticity that utilizes, belong to the Machining Technology field the method that the metallic substance mechanical component carry out school shape.
Background technology
Often there is the defective phenomenon of geomery in a lot of metallic substance mechanical component after hot and cold processing, for making the qualified necessary school of its size shape.So-called school shape is exactly by an amount of viscous deformation taking place, the position of the super tolerance of part shape size being got back in the size acceptable ranges.School shape method commonly used has four kinds of methods: the one, and the instantaneous afterburning plastic deformation method that produces of cold conditions; The 2nd, the hot instantaneous afterburning plastic deformation method that produces; The 3rd, be continuously applied less stress, long-time isothermal creep method; The 4th, partial points is heated to the focus school method of red heat state.When carrying out school shape, employing method one can split in the school, part spare had soft spots when employing method four was carried out school shape, more than various straightening methods all carry out after finishing in normal each operation of making, the common problem is to increase the operation that one or many contains heating than normal manufacturing, has increased manufacturing cost and time.
Summary of the invention
The objective of the invention is manufacturing cost height and long problem of time, and then a kind of method of utilizing transformation superplasticity the metallic substance mechanical component to be carried out school shape is provided in order to solve existing straightening method existence.
Technical scheme of the present invention is: the step of utilizing transformation superplasticity the metallic substance mechanical component to be carried out the method for school shape is:
Step 1: with being installed in the tooling by school shape part of as-quenched condition, tooling will be fixed in the tolerance of dimension acceptable ranges by the geomery of school shape part being applied durability by the part of the super tolerance of geomery of school shape part;
Step 2: will together be put into the tempering heat treatment operation that tempering stove carries out the normal process process together with tooling by school shape part, undergone phase transition in the tempering heat treatment process by school shape part, the superplasticity that has when utilizing metal phase change, under the effect of durability, by school shape part the required viscous deformation of school shape is taken place;
Step 3: after the tempering heat treatment operation is finished, lay down tooling, obtain the qualified part of tolerance of dimension.
The present invention compared with prior art has following effect: most of metallic substance mechanical component heat treatment steps all undergo phase transition, and metallic substance is all to have superplasticity when undergoing phase transition.When metallic substance has superplasticity when not having superplasticity mutually specific plastic increase one times to several times; The stress that viscous deformation takes place is reduced to 1/10th to 1/tens.Solid metal belongs to crystal, and phase transformation is the change of crystal lattices type and tissue.When undergoing phase transition, the metallic substance part is applied very little stress just viscous deformation can take place.Identical therewith, to be fixed in the size acceptable ranges by the position of the super tolerance of geomery of school shape part with tooling, this measure is to having been applied durability by school shape part, having passed through the tempering phase transformation again, the viscous deformation of school shape institute palpus meanwhile, takes place under above-mentioned durability effect.Can merge to school shape operation in the tempering process after ordinary production is quenched with this method, reach the purpose of school shape,, reduce manufacturing cost and shortened manufacturing time not because of school shape increases heat treatment step in addition.This tempering process has played the effect of three process: (1) obtains qualified hardness and tissue; (2) school shape effect is arranged, obtain qualified geometrical dimension; (3) eliminated the internal stress that school shape produces.
Description of drawings
Fig. 1 be the tooling of embodiment 1 with by the scheme of installation of school shape part, Fig. 2 be the tooling of embodiment 2 with by the scheme of installation of school shape part.
Embodiment
Embodiment one: the transformation superplasticity that utilizes of present embodiment to the step that the metallic substance mechanical component carry out straightening method is:
Step 1: with being installed in the tooling by school shape part of as-quenched condition, tooling will be fixed in the tolerance of dimension acceptable ranges by the geomery of school shape part being applied durability by the part of the super tolerance of geomery of school shape part;
Step 2: will together be put into the tempering heat treatment operation that tempering stove carries out the normal process process together with tooling by school shape part, undergone phase transition in the tempering heat treatment process by school shape part, the superplasticity that has when utilizing metal phase change, under the effect of durability, by school shape part the required viscous deformation of school shape is taken place;
Step 3: after the tempering heat treatment operation is finished, lay down tooling, obtain the qualified part of tolerance of dimension.
Embodiment 1: in conjunction with Fig. 1 present embodiment is described, by the shape facility of school shape part 2 is the inclined to one side stratosphere spare of the size of a certain direction much smaller than the size of other direction, the inclined to one side stratosphere spare of as-quenched condition is installed in the tooling 1, the part of the super tolerance of planeness of 1 pair of inclined to one side stratosphere spare of tooling applies durability, the geomery of inclined to one side stratosphere spare is fixed in the tolerance of dimension acceptable ranges, inclined to one side stratosphere spare is together put into the tempering heat treatment operation that tempering stove carries out the normal process process together with tooling 1, stratosphere spare undergoes phase transition in the tempering heat treatment process partially, the superplasticity that has when utilizing metal phase change, under the effect of durability, the required viscous deformation of school shape takes place in stratosphere spare partially; After the tempering heat treatment operation is finished, lay down tooling 1, obtain the qualified part of tolerance of dimension.
Embodiment 2: in conjunction with Fig. 2 present embodiment being described, is the thin and long units of a certain direction size much larger than other direction size by the shape facility of school shape part 2.Thin and long units is proofreaied and correct linearity, thin and long units is installed in the tooling 1, the part bending of the super tolerance of linearity of 1 pair of thin and long units of tooling, projection applies durability, the super tolerance of geomery of thin and long units is fixed in the tolerance of dimension acceptable ranges, thin and long units is together put into the tempering heat treatment operation that tempering stove carries out the normal process process together with tooling 1, thin and long units undergoes phase transition in the tempering heat treatment process, the superplasticity that has when utilizing metal phase change, under the effect of durability, the required viscous deformation of school shape takes place in thin and long units; After the tempering heat treatment operation is finished, lay down tooling 1, obtain the qualified part of tolerance of dimension.
Claims (1)
1. one kind is utilized transformation superplasticity to the method that the metallic substance mechanical component carry out school shape, and it is characterized in that: the step of straightening method is:
Step 1: with being installed in the tooling by school shape part of as-quenched condition, this tooling will be fixed in the tolerance of dimension acceptable ranges by the geomery of school shape part being applied durability by school shape part;
Step 2: will together be put into the tempering heat treatment operation that tempering stove carries out the normal process process together with tooling by school shape part, undergone phase transition in the tempering heat treatment process by school shape part, the superplasticity that has when utilizing metal phase change, under the effect of durability, by school shape part the required viscous deformation of school shape is taken place;
Step 3: after the tempering heat treatment operation is finished, lay down tooling, obtain the qualified part of tolerance of dimension.
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| CN 201010299718 CN101935744A (en) | 2010-10-08 | 2010-10-08 | Method for sizing metal material mechanical part by phase change superplasticity |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102965482A (en) * | 2012-11-08 | 2013-03-13 | 机械科学研究总院先进制造技术研究中心 | Metal piece deformation repair method |
| CN103170559A (en) * | 2011-12-22 | 2013-06-26 | 南方汇通股份有限公司 | Method and device for adjusting and repairing spring |
| CN104630434A (en) * | 2015-01-28 | 2015-05-20 | 四川理工学院 | Method for achieving superplasticity of 304 stainless steel by virtue of cyclic martensite phase transformation |
| CN104694711A (en) * | 2015-03-16 | 2015-06-10 | 上海交通大学 | Control method of heat treatment distortion based on phase transformation plasticity |
| CN106493520B (en) * | 2016-11-25 | 2018-07-17 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of processing method of thin-walled elastic ring |
| CN112808789A (en) * | 2019-11-18 | 2021-05-18 | 丰田自动车株式会社 | Method for manufacturing steel plate member |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS586923A (en) * | 1981-07-07 | 1983-01-14 | Aichi Steel Works Ltd | Production of spring steel of high resistance to permanent set in fatigue |
| CN1123202A (en) * | 1994-10-14 | 1996-05-29 | 高有志 | Technological method for rolling spring steel by using waste and old steel rail |
| JP2000080441A (en) * | 1998-09-02 | 2000-03-21 | Bridgestone Corp | Steel wire and its production |
| CN101392318A (en) * | 2008-06-18 | 2009-03-25 | 哈尔滨汽轮机厂有限责任公司 | Method for spring sizing by using metal transition superplasticity |
-
2010
- 2010-10-08 CN CN 201010299718 patent/CN101935744A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS586923A (en) * | 1981-07-07 | 1983-01-14 | Aichi Steel Works Ltd | Production of spring steel of high resistance to permanent set in fatigue |
| CN1123202A (en) * | 1994-10-14 | 1996-05-29 | 高有志 | Technological method for rolling spring steel by using waste and old steel rail |
| JP2000080441A (en) * | 1998-09-02 | 2000-03-21 | Bridgestone Corp | Steel wire and its production |
| CN101392318A (en) * | 2008-06-18 | 2009-03-25 | 哈尔滨汽轮机厂有限责任公司 | Method for spring sizing by using metal transition superplasticity |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103170559A (en) * | 2011-12-22 | 2013-06-26 | 南方汇通股份有限公司 | Method and device for adjusting and repairing spring |
| CN102965482A (en) * | 2012-11-08 | 2013-03-13 | 机械科学研究总院先进制造技术研究中心 | Metal piece deformation repair method |
| CN104630434A (en) * | 2015-01-28 | 2015-05-20 | 四川理工学院 | Method for achieving superplasticity of 304 stainless steel by virtue of cyclic martensite phase transformation |
| CN104694711A (en) * | 2015-03-16 | 2015-06-10 | 上海交通大学 | Control method of heat treatment distortion based on phase transformation plasticity |
| CN106493520B (en) * | 2016-11-25 | 2018-07-17 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of processing method of thin-walled elastic ring |
| CN112808789A (en) * | 2019-11-18 | 2021-05-18 | 丰田自动车株式会社 | Method for manufacturing steel plate member |
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Open date: 20110105 |