A kind of steel forming method and its forming component

A technology for forming components and steel, applied in vehicle parts, transportation and packaging, etc., can solve the problems of high cost, low production efficiency and high energy consumption

Active Publication Date: 2018-02-02
EASYFORMING STEEL TECH CO LTD
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The heating step at 500-700°C in this document causes recovery or recrystallization of the deformed TWIP steel. Although it can completely eliminate the residual stress in the component and solve the problem of delayed cracking, this method consumes a lot of energy and is Two sets of molds are required to complete the forming and correction work respectively, with high cost and low production efficiency

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
  • A kind of steel forming method and its forming component
  • A kind of steel forming method and its forming component
  • A kind of steel forming method and its forming component

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The inventors have found through research that deformation twins can be formed in the deformation process of TWIP steels, and some TWIP steels also have austenite transformation into martensite, and the formation of twins or the formation of martensite provides a guarantee for delayed cracking. Convenience channels, so TWIP steel has such a large risk of delayed cracking. Therefore, reducing the number or even orders of magnitude of twins in TWIP steel during forming and simultaneously inhibiting the formation of martensite provides a way to solve the problem of delayed cracking.

[0022] The performance and plastic deformation mechanism of steel materials based on austenite such as TWIP steel mainly depend on their stacking fault energy (SFE: Stacking Fault Energy). At room temperature, the stacking fault energy of high-manganese TWIP steel is low, and twins will be formed during plastic deformation. The stacking fault energy is closely related to temperature. At a hi...

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

PropertyMeasurementUnit
tensile strengthaaaaaaaaaa
yield strengthaaaaaaaaaa
tensile strengthaaaaaaaaaa
Login to view more

Abstract

A steel forming method, comprising the following steps: (A) providing steel for forming; (B) heating the steel to 150-500°C; (C) conveying the heated steel to a steel forming device; and (D) performing a forming operation on the steel in a temperature range of 100-450 °C in the steel forming device. The steel forming method and a formed component manufactured by the method can reduce the amount of twin crystals formed during formation of the steel, while inhibiting the formation of martensite, solving the problem of delayed cracking.

Description

technical field [0001] The invention relates to a steel forming method and a forming component thereof. Background technique [0002] Lightweight and safety are the focus of research and development in the automotive industry in recent years. The use of high-strength steel plates can reduce the thickness of the steel plate without sacrificing the safety of the collision, so as to achieve the purpose of reducing the weight of the car. At the same time, the elongation of the steel plate, on the one hand, determines whether the steel plate can be formed into a more complex, beautiful and optimally engineered part shape, and on the other hand, determines the How much energy absorption capacity it has. Therefore, high strength and high elongation are important indicators for the development of automotive steel sheets. [0003] TWIP (Twinning Induced Plasticity, twin induced plasticity) steel is a high manganese full austenitic steel with twinning induced plasticity as the main...

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 Patents(China)
IPC IPC(8): B21D53/88C22C38/02C22C38/04C22C38/06C22C38/12
CPCB21D53/88C22C38/02C22C38/04C22C38/06C22C38/12B21D35/00
Inventor 熊小川
Owner EASYFORMING STEEL TECH CO LTD
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