CN101575705A - Laser cladding reconstructing and repairing process of failure crank shaft - Google Patents
Laser cladding reconstructing and repairing process of failure crank shaft Download PDFInfo
- Publication number
- CN101575705A CN101575705A CNA200810097285XA CN200810097285A CN101575705A CN 101575705 A CN101575705 A CN 101575705A CN A200810097285X A CNA200810097285X A CN A200810097285XA CN 200810097285 A CN200810097285 A CN 200810097285A CN 101575705 A CN101575705 A CN 101575705A
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- CN
- China
- Prior art keywords
- failure
- reconstructing
- crank shaft
- repairing process
- laser cladding
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- Laser Beam Processing (AREA)
Abstract
The invention relates to a laser cladding reconstructing and repairing process of a failure crank shaft, in particular to a laser cladding process which can reconstruct a failure part of a workpiece so as to lead the workpiece not to be rejected because the geometric construction dimension is in failure. The technical scheme is achieved as follows: alloy powder is cladded on the surface of the workpiece by using a high energy density laser beam and adopting ways of laser beam coaxial feeding, continuous spiral feeding and laser beam lapping scanning. The process parameter is optimized, a cladding layer with equal thickness and equal hardness is obtained, the cladding layer and a substrate are metallurgically bonded, and the purpose for reconstructing the geometric construction dimension of the failure part of the crank shaft is achieved.
Description
Affiliated technical field
A kind of laser melting and coating process can be made the workpiece failure site again.
Background technology
The large-scale precision component of machine is scrapped because of the inefficacy that processing is slipped up or life-time service produced in manufacturing processed, if adopt the electric welding reparation, its heat affected zone is big, and component are yielding, sprays, electroplates if adopt, and its bonding surface is physical bond.And the characteristics of laser melting coating are heating and cooling speed fast (10
6℃/S, 10
5℃/S), heat accumulation is few, so heat affected zone and deflection are minimum.
Summary of the invention
Laser melting coating bent axle technology can be carried out orientation, quantitative cladding reparation to the workpiece failure site, overcomes the deficiency of conventional renovation technique.
The technical scheme that its technical solution problem of this laser cladding reconstructing and repairing process of failure crank shaft is adopted is: use the high-energy-density laser beam, the mode that adopts alloy powder and laser beam coaxial powder-feeding and continuous helical feeding laser beam overlap joint to scan, with the alloy powder cladding at workpiece surface.Optimized parameters, obtain equal thickness with etc. the hardness crucible zone, realize the metallurgical binding of crucible zone and matrix reaching the purpose of reproducing bent axle failure site geometry size.
The invention has the beneficial effects as follows that instant laser melting coating reparation recovers failure site geometry size, reaches manufacturing purpose again.
Embodiment
Equipment frock: with three kilowatts of carbon dioxide lasers is light source, Multi-function Laser Manufacture Machine Tool, powder feeder, reflective condensing lens.The cladding spot size: the V main shaft diameter of axle, by
Repair and guarantee and to grind
Process parameter table:
Claims (5)
1, laser cladding reconstructing and repairing process of failure crank shaft, it is characterized in that: alloy powder and laser beam coaxial powder-feeding, the scanning of continuous helical feeding laser beam overlap joint, with the alloy powder cladding at workpiece surface, optimized parameters, obtain equal thickness with etc. the hardness crucible zone, realize the metallurgical binding of crucible zone and matrix, reproduce bent axle failure site geometry size.
2, laser cladding reconstructing and repairing process of failure crank shaft according to claim 1 is characterized in that: coaxial powder-feeding overlaps scanning continuously.
3, laser cladding reconstructing and repairing process of failure crank shaft according to claim 1 is characterized in that: crucible zone and matrix are metallurgical binding, no metallographic structure defective.
4, laser cladding reconstructing and repairing process of failure crank shaft according to claim 1 is characterized in that: crucible zone thickness and crucible zone hardness controlled.
5, laser cladding reconstructing and repairing process of failure crank shaft according to claim 1 is characterized in that: processing parameter:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810097285XA CN101575705A (en) | 2008-05-09 | 2008-05-09 | Laser cladding reconstructing and repairing process of failure crank shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810097285XA CN101575705A (en) | 2008-05-09 | 2008-05-09 | Laser cladding reconstructing and repairing process of failure crank shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101575705A true CN101575705A (en) | 2009-11-11 |
Family
ID=41270773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200810097285XA Pending CN101575705A (en) | 2008-05-09 | 2008-05-09 | Laser cladding reconstructing and repairing process of failure crank shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101575705A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102912341A (en) * | 2012-10-26 | 2013-02-06 | 沈阳航空航天大学 | Method for repairing high-speed steel cutter by means of laser cladding |
| CN103264267A (en) * | 2013-06-07 | 2013-08-28 | 山东塔高矿业机械装备制造有限公司 | Remanufacturing process of fully-mechanized coal mining hydraulic bracket |
| CN103498154A (en) * | 2013-09-05 | 2014-01-08 | 江苏翌煜能源科技发展有限公司 | Laser cladding method for surface of automobile engine camshaft |
| CN103498143A (en) * | 2013-09-05 | 2014-01-08 | 江苏翌煜能源科技发展有限公司 | Laser cladding method for surface of automobile engine crankshaft |
| CN103600214A (en) * | 2013-12-06 | 2014-02-26 | 山东塔高矿业机械装备制造有限公司 | Processing technology for reproducing column head threaded holes of hydraulic support upright column |
| CN103742517A (en) * | 2014-01-23 | 2014-04-23 | 潍柴动力(潍坊)再制造有限公司 | Engine crankshaft and remanufacturing method thereof |
| CN103753020A (en) * | 2014-01-17 | 2014-04-30 | 河南科技大学 | Laser repair welding process for Zn-Al alloy |
| CN103990935A (en) * | 2013-02-19 | 2014-08-20 | 宝山钢铁股份有限公司 | Roll shaft repairing method of fast wire mill |
| CN105200420A (en) * | 2014-05-28 | 2015-12-30 | 中国科学院力学研究所 | Cast iron cylinder cap bridge zone laser cladding technology |
| CN105779995A (en) * | 2014-12-25 | 2016-07-20 | 丹阳宏图激光科技有限公司 | Laser repairing process for flat department collar |
-
2008
- 2008-05-09 CN CNA200810097285XA patent/CN101575705A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102912341A (en) * | 2012-10-26 | 2013-02-06 | 沈阳航空航天大学 | Method for repairing high-speed steel cutter by means of laser cladding |
| CN103990935A (en) * | 2013-02-19 | 2014-08-20 | 宝山钢铁股份有限公司 | Roll shaft repairing method of fast wire mill |
| CN103264267A (en) * | 2013-06-07 | 2013-08-28 | 山东塔高矿业机械装备制造有限公司 | Remanufacturing process of fully-mechanized coal mining hydraulic bracket |
| CN103498154A (en) * | 2013-09-05 | 2014-01-08 | 江苏翌煜能源科技发展有限公司 | Laser cladding method for surface of automobile engine camshaft |
| CN103498143A (en) * | 2013-09-05 | 2014-01-08 | 江苏翌煜能源科技发展有限公司 | Laser cladding method for surface of automobile engine crankshaft |
| CN103600214A (en) * | 2013-12-06 | 2014-02-26 | 山东塔高矿业机械装备制造有限公司 | Processing technology for reproducing column head threaded holes of hydraulic support upright column |
| CN103753020A (en) * | 2014-01-17 | 2014-04-30 | 河南科技大学 | Laser repair welding process for Zn-Al alloy |
| CN103742517A (en) * | 2014-01-23 | 2014-04-23 | 潍柴动力(潍坊)再制造有限公司 | Engine crankshaft and remanufacturing method thereof |
| CN105200420A (en) * | 2014-05-28 | 2015-12-30 | 中国科学院力学研究所 | Cast iron cylinder cap bridge zone laser cladding technology |
| CN105200420B (en) * | 2014-05-28 | 2018-09-25 | 中国科学院力学研究所 | A kind of cast-iron head ridge area laser melting and coating process |
| CN105779995A (en) * | 2014-12-25 | 2016-07-20 | 丹阳宏图激光科技有限公司 | Laser repairing process for flat department collar |
| CN105779995B (en) * | 2014-12-25 | 2018-08-07 | 丹阳宏图激光科技有限公司 | The laser repairing process of flat department's axle sleeve |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20091111 |