热冲压成形模具冷却系统的设计研究

doi:10.13228/j.boyuan.issn1006-6543.20170023

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Abstract In order to solve the problem of uneven strength in different parts of ultra-high strength steel hot stamping parts， the heat transfer process during pressure maintaining and cooling stage under different cooling conditions was simulated and analyzed through Deform software. The results show that the die surface temperature decreases rapidly by 50.0-100.0 ℃ in the pressure maintaining stage after cooling water is introduced. By optimizing the arrangement of cooling channels， the number and diameter of cooling channels and the cooling water flow velocity， the temperatures at the fillet of male die and female die decrease by 14.5 ℃ and 26.0 ℃ respectively. The optimal design scheme of mold cooling system is applied to the hot stamping mold of A-pillar reinforcement part， the uniform martensite structure is finally obtained， which is beneficial to obtain parts with consistent mechanical properties.

Key words： die hot forming temperature field cooling system

Received: 09 March 2017 Published: 29 August 2018

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	Articles by authors
	PANG Li-Juan
	ZHANG Xue-Feng
	HUANG Zhi-Yong

Cite this article:

PANG Li-Juan,ZHANG Xue-Feng,HUANG Zhi-Yong. Research and design on cooling system of hot stamping die[J]. , 2018, 28(04): 71-76.

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http://edit.chinamet.cn/Jweb_fmyjgy/EN/10.13228/j.boyuan.issn1006-6543.20170023 OR http://edit.chinamet.cn/Jweb_fmyjgy/EN/Y2018/V28/I04/71