Forming method of variable strength hot stamped piece and die

A forming die and hot stamping technology, which is applied in forming tools, manufacturing tools, vehicle parts, etc., can solve the problems of high manufacturing cost and complicated process, reduce the overall weight, improve the collision energy, and improve the ability to resist side impact deformation Effect

Inactive Publication Date: 2012-01-18
ADVANCED MFG TECH CENT CHINA ACAD OF MASCH SCI & TECH
View PDF5 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention provides a forming method and mold for variable-strength hot stamping parts, which can manufacture high-performance hot stamping parts, solve the problems of high manufact

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Forming method of variable strength hot stamped piece and die
  • Forming method of variable strength hot stamped piece and die
  • Forming method of variable strength hot stamped piece and die

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The present invention will be further described below according to the accompanying drawings.

[0023] figure 1 Different parts of the middle B-pillar have different requirements for mechanical properties, which are divided into four levels. The upper end of the B-pillar has the best mechanical properties, as shown in part 1 in the figure, and the tensile strength is above 1500MPa, while the lower end has the worst mechanical properties, as shown in figure 3. , Part 4, the tensile strength is about 650~750MPa or more, and the mechanical properties between the two are next. For part 2 in the figure, the tensile strength is between 1100~1200MPa. According to this requirement, the local cooling hot stamping die is designed, and its die is as follows figure 2 and image 3 As shown, in the hot stamping die, the cooling pipe is arranged in the die block 5, and the cooling pipe is also arranged in the corresponding convex die block; the cooling pipe is arranged in the die b...

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

An automotive structural component needs high strength to ensure collision safety, and meanwhile, the specific part needs relatively low strength and relatively high toughness to realize high comprehensive performance so as to achieve energy absorption effect and realize good comprehensive protection function. The conventional structural component cannot meet the actual using requirement due to consistent integral performance, or has different implementing performance, complex process and hidden performance worries at the combined position due to an assembled mode. According to different local performance requirements of parts, the invention designs a hot stamping die comprising modules of different cooling efficiency, wherein the die is used for manufacturing body safety protection structural components with high performance, light weight and low cost. Only one specific die insert of the hot stamping die comprises a cooling duct, or the positions, the size and the arrangement of cooling ducts of sub blocks are distinguished and designed according to the performance requirements; and the produced hot formed structural component such as a column B reinforcing plate lightens the integral weight of the original part, promotes the lateral collision deformation resistance of an automobile, and meanwhile can well absorb collision energy.

Description

technical field [0001] The invention relates to the field of hot stamping, and specifically relates to a hot stamping die that can manufacture a part that can not only ensure the safety of automobiles, but also improve the structural strength and effectively absorb energy. Background technique [0002] Automobile lightweight and safety have become the forefront and hot spot of automobile technology in the 21st century. Studies have shown that if the weight of the vehicle is reduced by 10%, the fuel efficiency can be increased by 6% to 8%. Since the oil crisis in 1973, the lightweight of automobiles has been gradually paid attention to. However, the needs of safety, comfort, and intelligence have caused the weight of automobiles, especially passenger cars, to fluctuate. With the advancement of materials and manufacturing technology, automobile weight reduction has been continuously realized. Automobile lightweight is very important to save energy, reduce exhaust emissions, a...

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
IPC IPC(8): B21D53/88B21D37/10B21D37/16
Inventor 单忠德姜超庄百亮戎文娟叶永盛
Owner ADVANCED MFG TECH CENT CHINA ACAD OF MASCH SCI & TECH
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