随着国防和民用工业的发展,对钨、鉬、钛、鋯、鉭、鈮等难熔和耐热金属薄壁空心件的需求量在日益增加而且零件精度的要求越来越高。对这类材料的成形,热旋压是一种可行的工艺。本文以纯钨喷管(图1)的旋压成形为例阐述高温旋压成形中的一些技术问题。一、零件结构与坯料技术条件该零件结构特点(图1)是薄壁(1.0～4.0毫米)曲线空心旋转体。带有外翻边或 With the development of national defense and civilian industry, the demand for refractory and heat-resistant metal thin-walled hollow parts such as tungsten, molybdenum, titanium, zirconium, tantalum and niobium is increasing and the precision of parts is increasing. For this type of material forming, hot spinning is a viable process. In this paper, pure tungsten nozzle (Figure 1) spinning forming as an example to illustrate the high temperature spinning in the formation of some technical issues. First, the structure of the parts and blanks Technical conditions The structural features of the parts (Figure 1) is thin-walled (1.0 ~ 4.0 mm) curve hollow rotating body. With a flared edge or