一、前言等温锻造是一项新工艺,运用这种工艺,能生产符合成品尺寸或接近成品尺寸的精密锻件(包括各种形状复杂的零件以及表面积与体积的比值较大的薄壁零件),锻造工序少,材料利用率高,机加工费用低,同时,由于减少或消除了模具激冷和材料应变硬化的影响,降低了变形抗力,因而近十几年来在工艺技术领域崭露头角。然而,由于它在模具制造、加热装置等方面的成本较高,实际应用中有某些困难。目前,各国除了通过降低等温模锻的温 I. INTRODUCTION Isothermal forging is a new process that uses this process to produce precision forgings that meet the finished or near finished product dimensions (including a wide variety of complex shaped parts and thin wall parts with a large surface area to volume ratio) Forging process less material utilization, low machining costs, the same time, due to reduce or eliminate the mold quenching and material strain hardening, reducing the deformation resistance, which nearly ten years in the field of technology emerge. However, due to its high cost in mold making, heating equipment, etc., there are some difficulties in practical use. At present, all countries except by reducing the temperature isothermal forging