Finite element simulation of textured tool surfaces in sheet metal forming

Name: Pichitpong Pongsaranun

Organization : Khon Kaen University. Faculty of Engineering

Name: Sasawat Mahabunphachai

Organization : Thailand Science Park. National Metal and Materials Technology Center (MTEC)

Name: Sedthawatt Sucharitpwatskul

Organization : Thailand Science Park. National Metal and Materials Technology Center (MTEC)

Name: Numpon Mahayotsanun

Organization : Khon Kaen University. Faculty of Engineering

Email : numpon@kku.ac.th

keyword: Load Carrying Capacity

ThaSH: Finite element method

ThaSH: Friction

ThaSH: Deep drawing (Metal-work)

Abstract: This study investigated the friction behaviors and load carrying capacity of different die surface textures in sheet metal forming by using finite element simulation. Three types of texture shapes (circular, triangle, and square) and one smooth with no texture (flat) were considered. The flat-on-flat simulations were carried out to obtain the tangential forces, normal forces, and average pressures. The tangential and normal forces were used to calculate the friction coefficients at the die-sheet interface. The results showed that surface texturing caused the friction coefficients to fluctuate along the sliding distance but the amount of fluctuation was considered insignificant in dry lubrication. The average pressure values were used to indicate the load carrying capacity of each texture and its effectiveness in hydrodynamic lubrication. The highest to lowest average pressures were obtained from circular, triangle, square, and flat shapes, respectively. This implied that the circular shape texture was considered the most effective in hydrodynamic lubrication. The results from this study provided a fundamental understanding of surface texturing and could be used to design optimized die surface textures in sheet metal forming process.

King Mongkut's University of Technology North Bangkok. Central Library

Address: BANGKOK

Email: library@kmutnb.ac.th

Created: 2014

Modified: 2021-02-02

Issued: 2021-02-02

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BibliograpyCitation : ใน มหาวิทยาลัยขอนแก่น คณะวิศวกรรมศาสตร์ ร่วมกับ สมาคมวิศวกรเครื่องกลไทย. การประชุมวิชาการเครือข่ายวิศวกรรมเครื่องกลแห่งประเทศไทย ครั้งที่ 28 (ME-NETT 2014) (AMM160). ขอนแก่น : มหาวิทยาลัยขอนแก่น

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