CN104404417A - Manufacturing technology for beryllium bronze reed bent piece - Google Patents
Manufacturing technology for beryllium bronze reed bent piece Download PDFInfo
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- CN104404417A CN104404417A CN201410643142.XA CN201410643142A CN104404417A CN 104404417 A CN104404417 A CN 104404417A CN 201410643142 A CN201410643142 A CN 201410643142A CN 104404417 A CN104404417 A CN 104404417A
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- reed
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Abstract
A related manufacturing technology for a beryllium bronze reed bent piece comprises the following steps: first step, employing a CY4-state raw material; second step, performing linear cutting to obtain a profile; third step, performing stamping shaping; forth step, correcting, concretely, under the CY4 state, performing manual correction on the beryllium bronze reed bent piece subjected to stamping shaping, so as to enable the corrected reed to be completely fit with a lower mold of an ageing-treatment mold; and fifth step, loading the mold and performing heat ageing processing, concretely putting the manually-corrected beryllium bronze reed bent piece in the mold and performing heat ageing processing. The state of the CY4 raw material subjected to stamping shaping belongs to a relatively soft state, and correction is easy to perform; manual correction is performed before mold-loading manual ageing processing, and the main purpose is to enable the piece to be completely fit with the mold, and thus the stress of the piece in the manual ageing process is zero and the ageing deformation of the piece is avoided, and thus the dimension precision of the piece to completely satisfy the drawing technological requirement, and also the dimension stability of the piece in a usage process is guaranteed.
Description
Technical field
The present invention relates to a kind of manufacturing process of berylliumbronze reed bending part, particularly relate to the method for controlling heat treatment deformation of die-filling ageing treatment and correction in a kind of manufacturing process of berylliumbronze reed bending part.
Background technology
Berylliumbronze is a kind of typical precipitation hardenable alloy, after part has to pass through thermal treatment, could obtain every premium properties, thus ensure mechanical property in use.But the age-hardening process of berylliumbronze has its singularity, if ag(e)ing process is a special process rapidly, and can volumetric shrinkage be produced, very easily by factors such as non-uniform temperature, stress, metallurgical qualities, the physical dimension of part and precision are had a huge impact, therefore, the heat treatment deformation of Beryllium Copper Parts controls to be a gordian technique.
The manufacturing process that berylliumbronze bending reed adopts usually is: CY4 state (solid solution condition+1/4 hardens, and sclerosis object ensures beryllium bronze band surfacing) starting material → Linear cut → stamping → die-filling ageing treatment → age hardening state correction → low temperature destressing.The weak point that this processing method exists is:
Because of by the impact of starting material manufacturing process, the angle of bend consistence after reed is stamping is very poor, causes the consistence of part angle after die-filling timeliness very poor, must adopt manual correction after timeliness;
Age hardening state corrects more difficult, and dimensional precision is wayward;
Because manual correction is single load bearing, the reed directly carrying out low temperature destressing after treatment for correcting in use can produce reply because correcting stress relief, thus causes loose contact and lost efficacy.
Summary of the invention
The invention provides one for above problem and carry out manual correction before die-filling thermal life process, thus can ensure that reed dimensional precision meets drawing technical requirements and can not produce the manufacturing process of the berylliumbronze reed bending part correcting stress relief.Adopt the accessory size consistence after this processing method process good, and the dimensional stability in use procedure can be ensured.
In order to overcome the above problems the manufacturing process that the invention provides a kind of berylliumbronze reed bending part, comprise the following steps: the first step: adopt CY4 state starting material; Second step: Linear cut profile; 3rd step: stamping, is characterized in that:
4th step: correct: under CY4 state, carries out manual correction (being easy to correct in this state), the reed after correction and ageing treatment lower mould is fitted completely by stamping berylliumbronze reed bending part;
5th step: die-filling thermal life process: by after manual correction berylliumbronze reed bending part load mould carry out thermal life process, 1) die-filling time must adopt the bending reed of fitting completely with mould; 2) the bullnose R2 of lower mould must be identical with the filleted corner R of reed, and the filleted corner R1 of patrix must be less than the bullnose R of reed.
CY4 raw material state after stamping belongs to comparatively soft state, is easy at this moment correct; Manual correction is carried out before die-filling artificial aging process, main purpose is that part and mould are fitted completely, thus make stressed in artificial aging process of part be 0, avoid the secular distortion of part, thus ensure that the dimensional precision of part can meet drawing technical requirements completely, part dimensional stability in use can be ensured simultaneously.
Accompanying drawing explanation
The structural representation of the patrix used in Fig. 1 present invention process;
The structural representation of the counterdie used in Fig. 2 present invention process.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
The invention provides a kind of manufacturing process of berylliumbronze reed bending part, comprise the following steps:
The first step: CY4 state starting material;
Second step: Linear cut;
3rd step: stamping;
4th step: correct: under CY4 state, carries out manual correction (being easy to correct in this state), the reed after correction and ageing treatment lower mould is fitted completely by stamping berylliumbronze reed bending part;
5th step: die-filling thermal life process: the berylliumbronze reed bending part after manual correction is loaded mould and carries out thermal life process,
1) the bending reed of fitting completely with mould must be adopted time die-filling; 2) the bullnose R of lower mould must be identical with the filleted corner R of reed, and the filleted corner R of patrix must be less than the bullnose R of reed.
Described mould comprises, upper die and lower die, and patrix such as Fig. 1 is uniform thickness steel construction, and shape is identical with External Shape, but fillet R1 must be less than the bullnose R of timeliness part.Counterdie such as Fig. 2 is uniform thickness steel construction, and shape is identical with External Shape, and fillet R2 must be identical with timeliness part.
The foregoing is only the preferred embodiments of the present invention, be not restricted to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within right of the present invention.
Claims (1)
1. a manufacturing process for berylliumbronze reed bending part, comprises the following steps: the first step: adopt CY4 state starting material; Second step: Linear cut profile; 3rd step: stamping, is characterized in that:
4th step: correct: under CY4 state, carries out manual correction and " is easy to correct in this state ", the reed after correction and ageing treatment lower mould are fitted completely by stamping berylliumbronze reed bending part;
5th step: die-filling ageing treatment: by after manual correction berylliumbronze reed bending part load mould carry out artificial aging process, 1) die-filling time must adopt the bending reed of fitting completely with mould; 2) the bullnose R2 of lower mould must be identical with the filleted corner R of reed, and the filleted corner R1 of patrix must be less than the bullnose R of reed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410643142.XA CN104404417A (en) | 2014-11-13 | 2014-11-13 | Manufacturing technology for beryllium bronze reed bent piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410643142.XA CN104404417A (en) | 2014-11-13 | 2014-11-13 | Manufacturing technology for beryllium bronze reed bent piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104404417A true CN104404417A (en) | 2015-03-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410643142.XA Pending CN104404417A (en) | 2014-11-13 | 2014-11-13 | Manufacturing technology for beryllium bronze reed bent piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104404417A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112474879A (en) * | 2020-11-06 | 2021-03-12 | 重庆华渝电气集团有限公司 | Heat treatment shape correction method for metal sheet part |
| CN112626328A (en) * | 2020-12-16 | 2021-04-09 | 无锡市创新开关电器有限公司 | Novel spring piece heat treatment processing technology |
-
2014
- 2014-11-13 CN CN201410643142.XA patent/CN104404417A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 顾中华 等: "铍青铜簧片的热处理变形控制", 《电子机械工程》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112474879A (en) * | 2020-11-06 | 2021-03-12 | 重庆华渝电气集团有限公司 | Heat treatment shape correction method for metal sheet part |
| CN112626328A (en) * | 2020-12-16 | 2021-04-09 | 无锡市创新开关电器有限公司 | Novel spring piece heat treatment processing technology |
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Application publication date: 20150311 |