An analysis of the extrusion process of the straight-fin heat sink in a computer

Abstract

In this paper, the finite element method is used to investigate the extrusion process of the straight-fin heat sink in computers. A series of simulations on the straight-fin extrusion using the program DEFORM 2D was carried out. The influences of the process parameters such as straight-fin thickness, straightfin clearance and friction factor between the die and workpiece on the difference of maximum and minimum extruded fin lengths are examined. Fig. 1. A straight-fin heat sink in a computer Fig. 2. The extruded straight-fins with different lengths

Finite Element Analysis and Die Design of Extrusion Processes of Radial-Finned Heat Sink

“…The billet used was composed of aluminium A6061, and a temperature of 370 o C was applied to the extrusion material. The termination criteria for the iteration procedure are (1) 1 summarizes twelve simulation cases considered in the current study. The simulations consider aluminium A6061 extrusion materials, four friction factor values (m=0.1, 0.2, 0.3, and 0.5), four ram velocities (V= 0.1, 0.2, 0.3, and 0.5 mm/s), and seven different die configurations characterized by different values of dimensions B and C (see Figure 1).…”

“…FEM is used to investigate the extrusion process of a straight-fin heat sink used in computers. Jan and Kwan [1] carried out a series of straight-fin extrusion simulations using the program DEFORM 2D. Li et al [2][3] studied a series of pocket designs modeled using FEM to systematically investigate the influence of the pocket design parameters on the metal flow.…”