斜轧穿孔过程力能参数理论计算研究

由于穿孔机力学性能直接影响无缝钢管的产品质量和品种规格，而目前国内外对斜轧穿孔过程力的特性研究很不充分。为此，针对斜轧穿孔过程中计算力能参数的经验公式
和模拟计算力能参数的有限元方法进行了分析和比较，分析了轧制力、顶头受力和导板受力在整个斜轧穿孔过程中的分布情况，描述了整个斜轧穿孔过程中工件与工具间的受
力状态，给出了力能参数在斜轧穿孔过程中的规律。同时分析了轧制压力计算的经验公式出现误差的原因。结果表明，通过有限元模拟方法可以计算具有较高精确性的力能参数，该方法可应用于工程计算中，为实际生产提供更为准确的轧制力值。

Theoretical Calculation of Force Parameters in Piercing Process

The pierer force performance impacts on the seamless steel tube qualit y and standards straightly.And the research of rolling force character is not sufficient at home or abroad.It is concluded that the FEM(Finite Element Method) which has bette r accuracy can be used in engineering calculation by comparing and analyzing the empirical formula and the FEM.The exact value of rolling pressure is applied to the practical production by the FEM.The forced state is analyzed and the la w of mechanics parameter is summarized by the load distribution on the roll,the plug and the shoes in piercing process.And the error cause of the empirical fo rmula is analyzed.