CN102328182A - Automotive half-axle swing forging die repairing process - Google Patents

Automotive half-axle swing forging die repairing process Download PDF

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Publication number
CN102328182A
CN102328182A CN201110258415A CN201110258415A CN102328182A CN 102328182 A CN102328182 A CN 102328182A CN 201110258415 A CN201110258415 A CN 201110258415A CN 201110258415 A CN201110258415 A CN 201110258415A CN 102328182 A CN102328182 A CN 102328182A
Authority
CN
China
Prior art keywords
repairing
remelting
die
automotive
forging die
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201110258415A
Other languages
Chinese (zh)
Inventor
梁有华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thomas Industrial (dalian) Co Ltd
Original Assignee
Thomas Industrial (dalian) Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Thomas Industrial (dalian) Co Ltd filed Critical Thomas Industrial (dalian) Co Ltd
Priority to CN201110258415A priority Critical patent/CN102328182A/en
Publication of CN102328182A publication Critical patent/CN102328182A/en
Pending legal-status Critical Current

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Abstract

The invention discloses an automotive half-axle swing forging die repairing process. The repairing process comprises the following steps: a, surface pre-processing: removing a heat fatigue corrosion layer and cracks out of a to-be-repaired surface; b, performing the ultrasonic flaw detection to ensure that the die has no flaw; c, preheating the surface of the die at the preheating temperature of 200-250 DEG C; d, powder injecting and remelting: carrying out spray welding and remelting at the same time; e, slowly cooling after powder injecting and remelting; f, finely processing the repaired surface. The automotive half-axle swing forging die repairing process has the advantages that a repairing plating layer in well combination with a substrate can be obtained, the process is simple and the repairing cost can be reduced.

Description

A kind of automobile axle shaft rotary forging die repair skill of returning to work
Technical field
The present invention relates to the mould repair field, be specifically related to a kind of automobile axle shaft rotary forging die repair skill of returning to work.
Background technology
Material is the modified back surface hardening of the automobile axle shaft rotary forging mould of 5CrMnMo, and case hardness 56--58 HRC is in the use; Because continuous 1300 ℃ of high temperature workpiece of spreading, the workpiece heat is constantly passed to mould, makes die surface softening; Soften in order to overcome because of what intensification caused; The water-cooled of having in use not stop to carry out, after long-term the use, die surface produces the many places checking and surperficial bulk is peeled off.
Summary of the invention
The objective of the invention is to overcome above-mentioned not enough problem, a kind of automobile axle shaft rotary forging die repair skill of returning to work is provided.
The present invention for realizing the technical scheme that above-mentioned purpose adopted is: a kind of automobile axle shaft rotary forging die repair skill of returning to work may further comprise the steps:
A. surface preparation is removed the heat fatigue corrosion layer and the crackle on surface to be repaired;
B. the mould zero defect is found out in ultrasonic examination;
C. die surface preheating, preheat temperature 200-250 ℃;
D. dust and remelting limit surfacing limit remelting;
E. slow cooling behind the spray fusing;
F. carry out fine finishining to repairing the surface.
Characteristics of the present invention are: can obtain and matrix bond excellent repairing coating, technology is simple, reduces rehabilitation cost.
The specific embodiment
The present invention includes following steps: surface preparation, remove the heat fatigue corrosion layer and the crackle on surface to be repaired; Defectives such as mould flawless are guaranteed in ultrasonic examination; The die surface preheating, preheat temperature 200-250 ℃; Dust and remelting, limit surfacing limit remelting is to guarantee that die surface is smooth smooth; Slow cooling behind the spray fusing; Carry out fine finishining to repairing the surface; Die surface spray-welding coating hardness after the reparation is 60-62HRC, satisfies working condition requirement.
The above; Be merely the preferable specific embodiment of the present invention; But protection scope of the present invention is not limited thereto; Any technical staff who is familiar with the present technique field is equal to replacement or change according to technical scheme of the present invention and inventive concept thereof in the technical scope that the present invention discloses, all should be encompassed within protection scope of the present invention.

Claims (1)

1. the automobile axle shaft rotary forging die repair skill of returning to work is characterized in that may further comprise the steps:
A. surface preparation is removed the heat fatigue corrosion layer and the crackle on surface to be repaired;
B. the mould zero defect is found out in ultrasonic examination;
C. die surface preheating, preheat temperature 200-250 ℃;
D. dust and remelting limit surfacing limit remelting;
E. slow cooling behind the spray fusing;
F. carry out fine finishining to repairing the surface.
CN201110258415A 2011-09-02 2011-09-02 Automotive half-axle swing forging die repairing process Pending CN102328182A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201110258415A CN102328182A (en) 2011-09-02 2011-09-02 Automotive half-axle swing forging die repairing process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201110258415A CN102328182A (en) 2011-09-02 2011-09-02 Automotive half-axle swing forging die repairing process

Publications (1)

Publication Number Publication Date
CN102328182A true CN102328182A (en) 2012-01-25

Family

ID=45480292

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201110258415A Pending CN102328182A (en) 2011-09-02 2011-09-02 Automotive half-axle swing forging die repairing process

Country Status (1)

Country Link
CN (1) CN102328182A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103568721A (en) * 2012-07-24 2014-02-12 洪泽县汽车半轴制造有限公司 Half axle of off-road vehicle
CN105252203A (en) * 2015-10-19 2016-01-20 浙江大学宁波理工学院 Restoration method for mold fractures
CN105583570A (en) * 2016-02-23 2016-05-18 一汽-大众汽车有限公司 Sharp ridge repair method for automobile stamping mould

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103568721A (en) * 2012-07-24 2014-02-12 洪泽县汽车半轴制造有限公司 Half axle of off-road vehicle
CN105252203A (en) * 2015-10-19 2016-01-20 浙江大学宁波理工学院 Restoration method for mold fractures
CN105583570A (en) * 2016-02-23 2016-05-18 一汽-大众汽车有限公司 Sharp ridge repair method for automobile stamping mould

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PB01 Publication
C06 Publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20120125