Abstract:

The pierer force performance impacts on the seamless steel tube quality 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 better 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 law 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 formula is analyzed.

Key words: rolling, mechanics parameter, finite element method, piercing, rolling pressure