The invention provides a tailor-welded blank, a tailor-welded blank thermoforming component, a preparation method of the tailor-welded blank thermoforming component and a vehicle, the tailor-welded blank comprises a first plated steel plate and a second plated steel plate, the thickness and/or strength of the first plated steel plate are different from those of the second plated steel plate, the first plated steel plate comprises a first plated layer, and the second plated steel plate comprises a second plated layer. The thickness of the first plating layer is different from that of the second plating layer, and the first plating layer steel plate and the second plating layer steel plate are welded and connected through tailored blank laser welding. Experiments prove that the different coated steel plates can be fully austenitized within basically the same time by adjusting the thicknesses of the coatings of the different coated steel plates, so that the thin or weak-strength coated steel plates are prevented from being overheated for a long time on the premise of ensuring that the different coated steel plates are fully austenitized, and the service life of the coated steel plates is prolonged. And the problem of incomplete structure austenite transformation or overheating caused by the same heating time of steel plates with different coatings is fundamentally solved.
本申请提供了一种拼焊板、拼焊板热成型部件及其制备方法和车辆,其中所述拼焊板包括第一镀层钢板和第二镀层钢板,第一镀层钢板的厚度和/或强度与第二镀层钢板不同,第一镀层钢板包括第一镀层,第二镀层钢板包括第二镀层,第一镀层的厚度与第二镀层的厚度不同,第一镀层钢板与第二镀层钢板通过激光拼焊焊接连接。经过实验验证,通过调整不同镀层钢板的镀层的厚度,使得不同的镀层钢板能够在一个基本相同的时间都达到充分奥氏体化,这样在保证不同镀层钢板均达到充分奥氏体化的前提下,避免较薄或强度较弱的镀层钢板出现长时间的过热,从根本上解决了不同镀层钢板在相同加热时间导致的组织奥氏体转变不完全或过热问题。
Tailor-welded blank, tailor-welded blank thermal forming part, preparation method of tailor-welded blank thermal forming part and vehicle
拼焊板、拼焊板热成型部件及其制备方法和车辆
2023-12-29
Patent
Electronic Resource
Chinese
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