Method for regenerating abraded punch-die in car part punch die

A technology for auto parts and stamping dies, which is applied in the field of regeneration of worn convex and concave dies. It can solve the problems of insufficient bonding between fillers and dies, low hardness, and easy peeling, so as to save manufacturing repair costs and processing cycles, improve bonding performance, The effect of good binding properties

Active Publication Date: 2013-09-04
安徽振华汽车部件有限责任公司
View PDF2 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this process is that the combination between the filling material and the mold is not strong enough, the hardness is low, and it is easy to peel off when it is subjected to a large force in the actual processing process.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] What this embodiment provides is the regeneration method of the damaged convex and concave die in the stamping die, comprising the following steps:

[0015] a) A rare earth zinc-aluminum alloy coating is formed on the worn part of the punch and die of the stamping die through a hot-dip process. The mass percentage of each element in the rare earth zinc-aluminum alloy coating is 0.1% of rare earth, 94.9% of zinc, and 5.0% of aluminum. The rare earth is lanthanum and / or cesium; the temperature of the hot-dip process is 540-580°C, and the flux is a composite aqueous solution of ammonium chloride and zinc chloride;

[0016] b) Heat and melt the filling material and apply it to the stamping die, on the surface of the worn convex and concave dies. The mass percentage composition of the filling material is 0.6% carbon, 0.9% silicon, 0.7% manganese, 0.9% chromium, and 0.2% molybdenum. %, vanadium 0.1%, the balance of iron and impurities, of which the impurity content is less th...

Embodiment 2

[0020] What this embodiment provides is the regeneration method of the damaged convex and concave die in the stamping die, comprising the following steps:

[0021] a) A rare earth zinc-aluminum alloy coating is formed on the worn part of the punch and die of the stamping die through a hot-dip process, and the mass percentage of each element in the rare earth zinc-aluminum alloy coating is 0.2% of rare earth, 96.8% of zinc, and 3.0% of aluminum. The rare earth is lanthanum and / or cesium; the temperature of the hot-dip process is 540-580°C, and the flux is a composite aqueous solution of ammonium chloride and zinc chloride;

[0022] b) After heating and melting the filling material, apply it to the stamping die and the worn surface of the convex and concave dies. The mass percentage composition of the filling material is 0.7% carbon, 1.2% silicon, 1.1% manganese, 1.2% chromium, and 0.5% molybdenum. %, vanadium 0.3%, the balance of iron and impurities, of which the impurity conte...

Embodiment 3

[0026] The regeneration method of the stamping die provided by the present embodiment comprises the following steps:

[0027] a) A rare earth zinc-aluminum alloy coating is formed on the worn part of the convex and concave dies of the stamping die through a hot-dip process. The mass percentage of each element in the rare earth zinc-aluminum alloy coating is 0.2% rare earth, 94.8% zinc, and 5.0% aluminum. The rare earth is lanthanum and / or cesium; the temperature of the hot-dip process is 540-580°C, and the flux is a composite aqueous solution of ammonium chloride and zinc chloride;

[0028] b) After heating and melting the filling material, apply it to the stamping die and the worn surface of the convex and concave dies. The mass percentage composition of the filling material is 0.6% carbon, 1.0% silicon, 0.9% manganese, 1.1% chromium, and 0.3% molybdenum. %, vanadium 0.2%, the balance of iron and impurities, of which the impurity content is less than or equal to 1.0%; the hea...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a method for regenerating an abraded punch-die in a car part punch die. The method for regenerating the abraded punch-die in the car part punch die includes the following steps. Firstly, with the hot dip technology, a tombarthite zinc-aluminum alloy clad layer is formed in an abraded part of the punch-die. Secondly, filled materials are heated and molten and then coated in the abraded part of the punch-die. Thirdly, the regeneration position of the abraded part of the punch-die is made flat and smooth through mechanical machining. According to the method for regenerating the abraded punch-die in the car part punch die, combination capacity of the filled materials and the surface of the die can be favorably improved by forming a transition layer in the hot dip technology. The optimized filled materials can play a good role of combining and meet the requirement for high mechanical rigidity so that the regenerated punch-die has better firmness and strength in order to achieve the effect of regenerating the abraded punch-die. With the technology, manufacturing and fixing cost and a machining period of the punch die are greatly reduced, reliability of the regenerated punch-die is improved and the method for regenerating the abraded punch-die in the car part punch die provides a novel way of thinking and a novel method for an existing technology.

Description

technical field [0001] The invention relates to the technical field of stamping die processing for auto parts, in particular to a method for regenerating worn convex and concave dies in stamping dies for auto parts. Background technique [0002] Auto parts have high requirements on the mechanical strength of the punch and die of the stamping die. Therefore, in the stamping die used to produce auto parts, the degree of wear of the punch and die is an important factor affecting the manufacturing quality of auto parts. In the prior art, for the regeneration method of the worn concave-convex die in the stamping die, the filling material is welded to the worn position by electric welding technology, and then the welding point is smoothed by machining. The disadvantage of this process is that the combination between the filling material and the mold is not strong enough, the hardness is low, and it is easy to peel off when it is subjected to a large force during actual processing....

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B23P6/00
Inventor 章顺鹏程丁平周毅
Owner 安徽振华汽车部件有限责任公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap