錐形輥穿孔機(jī)頂頭輾軋錐角的精益設(shè)計(jì)及驗(yàn)證

Lean Design and Verification of Plug Toe Angle of Cone-type Piercer

摘要: 建立了錐形輥穿孔機(jī)頂頭輾軋錐角數(shù)學(xué)模型，以精確求得錐形輥穿孔機(jī)頂頭輾軋錐角；并采用有限元法對(duì)設(shè)計(jì)效果進(jìn)行驗(yàn)證。結(jié)果表明：采用穿孔機(jī)頂頭輾軋錐角的精益設(shè)計(jì)方法設(shè)計(jì)的頂頭，其軋制的毛管壁厚相對(duì)誤差在2%～3%，壁厚最大偏差在1%以內(nèi)，滿足API標(biāo)準(zhǔn)要求且達(dá)到較高精度。該設(shè)計(jì)方法為穿孔工具設(shè)計(jì)軟件及工藝控制模型的建立提供數(shù)學(xué)理論依據(jù)，可有效提升企業(yè)產(chǎn)品的市場(chǎng)競(jìng)爭(zhēng)力。

Abstract: A mathematic model of the plug toe angle of the cone type piercer is established in order to precisely get the plug toe angle determined.And the design verification is conducted with the finite element(FE)method.As a result, it is identified that using the plug toe angle of the piercer as designed with the lean design method will be able to produce shells with wall thickness relative error as 2%~3%, and maximum deviation within 1%, being up to applicable API specification, and having rather high accuracy.The said design method provides relevant mathematic theoretic basis for establishing the tool design software, and the process control model for the piercing mill, so as to further sharpen the product competitive edge of the company.