Development of New Warm Working Methods Applied with Thermomechanical Treatment

为了提高原材料的可加工性。本文提出了一种新的热处理方法——温回火锻造法，并将其应用于一些工业生产过程中，为此，必须开发一种具有多种性能和动力学的新型热成形机。在本课题中，搭建了一台温成形样机，并进行了一些温区深拉深试验。对多种钢板进行了试验。结果表明：(1)对30吨油压机进行改进，结合新研制的电控油压机，研制出了一种新型机械。力学。因此，ram速度可以通过计算机编程精确控制。(2)一种新的温拉深实验装置。，并进行了多种实验。(3)开发了电直接加热方法。(4)采用局部加热法研究了钢板的各向异性，研究开发了一种新的热成形工艺。

In order to improve the workabilities of raw materials. . and the mechanical properties of products in metal forming processes at warm temperatures, a new thermomechanical treatment named Warm Temper Forging Method, which was developed by the authors, has to be applied for some industrial processes and for this purpose, a new warm former which has various abilities and kinetics has to be developed. In this project, a prototype machine of warm former was constructed and some experiments on deep drawing in warm temperature regions. were conducted for many kinds of steel sheets. The following results were obtained :(1) A new machine was developed by improving an oil pressure press of 30 tonf combined with a newly developed electrical and oil-preesure survo. mechanics. As a result, the ram speed can be controlled exactly by a computer programming.(2) A new experimental device for warm deep drawing. was constructed and many kinds of experiment were conducted.(3) An electrical direct heating method was developed.(4) Anisotorppy of steel sheet was investigated using a partial heating method, and a new warm forming process was investigated and developed.