2007 Volume 15 Issue 5 Pages 181-186
One of the major problems of injection molding is poor transferability between the mold and the product due to uneven resin injection, requiring expensive reworking of the mold. An attempt was made to improve transferability through parameter design of the molding conditions instead of reworking the mold. As discussed in a previous report, accurate measurement of the a test piece output from the mold is essential in evaluation of transferability; in the present study, thermal degradation was introduced as a noise factor, the product was divided into parts, and transferability was evaluated of each part. A modest improvement in gain was obtained as a result.
