A method to determine critical areas of burr squeeze heads

The snagging wheels are manufactured at Hai Duong Grinding Wheel Company via the three-stage approach. Due to extremely high friction and pressure among the squeeze head, the abrasive grains and the mold, the pressing head is rapidly worn out. So far, the study of wear mechanisms and solutions for enhancing the life time of the pressing head has mot yet been really considered in Viet Nam. This paper presents an efficient approach to determine critical areas by analyzing the force, stress and strain at specific areas of the squeeze head. Afterward, the result is tested by using module Cosmos integrated in Solidwork 2006. The results show that the most critical area under the maximum stress appeared in a donut form with radius of 4/5 diameter of the squeeze head. This result efficiently supports for evaluating wear and determining the materials and mechanical characteristics of the head.