Surface hardening process for metal stamping die

A metal stamping and processing technology, applied in the field of mold forming technology, can solve the problems of long mold manufacturing cycle, large structure size, high dimensional accuracy and surface quality requirements, improve smoothness and dimensional accuracy, and reduce grinding time and times. , the effect of reducing the cost of use

Active Publication Date: 2012-10-24
CHONGQING CHUANGLONG IND
View PDF6 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Large-scale automobile panels are usually formed by stamping. Stamping dies are key process equipment for automobile production. Due to their large structural size, complex mold surface shapes, and high requirements for dimensional accuracy and surface quality, the mold manufacturing cycle is long and the cost is high.

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 Construction

[0013] An embodiment of the present invention provides a metal stamping die surface hardening process, including the following steps:

[0014] 1) Use metallographic sandpaper and flannelette to polish the surface of the metal stamping die successively;

[0015] 2) Use a cleaning agent to remove powder and oil on the surface of the metal stamping die;

[0016] 3) Apply the silica light-absorbing coating evenly on the surface of the metal stamping die, and control the coating thickness at about 0.06mm. The silica light-absorbing coating is added with a mass ratio of 5% nickel-based alloy powder, 1% WC and 1% TiC mixture;

[0017] 4) Dry the metal stamping die obtained in step 3) in a cool air, so that the silica light-absorbing coating can form a uniform film;

[0018] 5) Use carbon dioxide laser beam to quickly scan the surface of the metal stamping die in step 4), keep the laser power P=3200W, the spot diameter is 12mm, and the scanning speed V=5m / min, the surface hardening ...

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 relates to a die forming process and particularly relates to a surface hardening process for a metal stamping die. The process comprises the steps of 1) polishing a metal stamping die surface; 2) removing oil stains on the metal stamping die surface; 3) applying a silica light absorbing coating on the metal stamping die surface uniformly, and controlling the thickness to be within a range of 0.04-0.08mm, wherein the silica light absorbing coating comprises, by mass, 5% of nickel base alloy powder, 1% of wolfram carbide and 1% of titanium carbide mixtures; 4) drying the metal stamping die obtained from Step 3); and 5) using a carbon dioxide laser beam to quickly scan the metal stamping die surface obtained from Step 4), and keeping the laser power P of 2800-4000W, the spot diameter of 8-15mm and the scanning speed V of 4-6m/min. Tests prove that the hardening process can improve the abrasive resistance and the rigidity of the metal stamping die surface, reduce grinding time and grinding times and further reduce the usage cost.

Description

technical field [0001] The invention relates to a mold forming process, in particular to a surface hardening process of a metal stamping die. Background technique [0002] Large-scale automobile panels are usually formed by stamping. Stamping dies are key process equipment for automobile production. Due to their large structural size, complex mold surface shapes, and high requirements for dimensional accuracy and surface quality, the mold manufacturing cycle is long and the cost is high. Automobile panel stamping dies are subjected to strong friction, radial stress and compressive stress during use, so it is very easy to cause dimensional wear and surface grooves to be scrapped. It can be seen that the automobile panel stamping die has a high impact on hardness and wear resistance. Higher requirements. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a hardening process that can improve the wear resistance and ha...

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): C21D1/09C21D1/68
Inventor 陈振丰
Owner CHONGQING CHUANGLONG IND
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