The influence of tool steel microstructure on friction in sheet metal forming kirkhorn lanny lu.
Factors influencing friction in steel sheet forming.
Various lubricants are used to reduce the friction during the metal forming.
The results further showed that the surface topography and sample orientation in the rolling direction of the sheet are significant factors that influence the friction coefficient.
As the factors produce a dispersion effect on friction the following variables were chosen.
The influence of forming speed over pressing and holding time on springback behaviour of sheets was studied numerically.
The coefficient of friction in stribeck curve depends on sliding velocity and contact pressure.
The friction conditions are dependent on the tribology system i e.
In sheet metal forming friction has a major role in knowing the properties of metals.
Johan hol development manager from triboform engineering describes frictional influences that are unique to ahss forming and how the accuracy of predicting ahss automotive parts forming may be increased by using an alternative friction model.
The plane strain bending process is simulated in abaqus standard.
Abstract the frictional behavior of a number of conventional tool materials used in the sheet forming industry has been studied by a recently developed tribotester based on flat die strip.
If friction exists more than necessary it has a negative impact on characteristics of a product.
In this blog post dr.
Friction and lubrication are important factors when trying to accurately simulate advanced high strength steel ahss metal forming processes.
Sample orientation lubricant velocity of sample displacement plastic strain and contact pressure.
The strip drawing test of sheet metal was used in the simulation of the steel sheet steel tool friction contact conditions during a drawing operation.
Andersson mats lu and ståhl jan eric lu in wear 302 1 2.
Any type of friction will increase force hence stresses in the material.