사각단면을 가진 압출제품의 비틀림굽힘 압출가공법에 대한$ DEFORM^{TM}$-3D 해석

An Analysis of the Twisting and Bending Extrusion Process of the Product with the Rectangular Section by the $ DEFORM^{TM}$-3D

The twisting and bending extrusion process is developed by the $DEFORM^TM$-3D. Because the rectangular section of the extruded product has the symmetry line of cross-section area, the twisting and the bending of extruded product has not occurred. The product with the rectangular section is applied to the twisting and bending extrusion process through the twisted die surface and eccentricity die section. It is shown that the twisting of extruded product is caused by the twisted die surfaces and the bending of extruded product is causd by the eccentricity between the die section. The results by the analysis show that the twisting angle and the curvature of extruded products increases by the die twisting angle, the eccentricity, but decreases by the die length, and friction condition