Transactions of Materials and Heat Treatment

Title：Forging ratio,relative deformation and logarithmic strain

Authors： XU Shu-qin CHEN Hao-zhe YAO Min-min(College of Materials Science and Engineering Taiyuan University of Technology Taiyuan 030024 China)

Unit：

KeyWords： forging ratio logarithmic strain upsetting stretching

ClassificationCode：TG316

year,vol(issue):pagenumber：2009,34(1):14-16

Abstract：

In order to give a coincidence indicator for the total forging ratio calculation,the definitions and formulas of forging ratio,relative deformation and logarithmic strain were compared.The conversion expressions among the three were educed.Logarithmic strain could easily be used to calculate both the single step and multiple steps procedures.The relation of the logarithmic strain vs forging ratio was clearly shown.The calculation example for the multiple steps forging procedure was also given.It is indicated that the logarithmic strain is a more scientific method to calcu late the amount of the deformation.

Funds：

Reference：

[1]王祖唐.锻压工艺学[M].北京:机械工业出版社,1983.
[2]张志文.锻造工艺学[M].北京:机械工业出版社,1983.
[3]胡亚民,华林,许树勤,等.锻造工艺过程及模具设计[M].北京:中国林业出版社,2006.
[4]纪长福,孙墨汉,叶芳,等.锻比各种计算方法的看法与新公式的提出[J].机械设计与制造,2002,(5):107-108.
[5]汪大年.金属塑性成形原理[M].北京:机械工业出版社,1986.

Service：

【This site has not yet opened Download Service】【Add Favorite】