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前言 (一)研究臨界进料比的意义我国的鍛压工业解放十年来在党和政府的正确領导下得到了迅速的发展,因此要求鍛压工艺也要相应的发展,更好地滿足現代机械制造业中生产上的要求,就要进行各方面具体工艺和工艺基本理論研究的必要性。临界进料比的研究其目的在于研究自由鍛主要工序中之一的延伸工序在金属变形过程中的特点,变形是按照什么规律变化的,如果我們能够掌握其变形规律可以更好的为生产服务。
Preface (a) the significance of the study of the critical feed ratio China’s forging industry liberation in the decade under the correct leadership of the party and government has been rapid development, requiring forging process should also be a corresponding development to better meet the modern Machinery manufacturing in the production requirements, it is necessary to carry out all aspects of the specific process and the basic theory of the necessity of the process. The research of the critical feed ratio aims at studying the characteristics of the extended process of the free-forging process in the deformation process of the metal. The deformation changes according to the law. If we can grasp the deformation law, it can better serve the production .