Proceedings of the
World Congress on Micro and Nano Manufacturing (WCMNM 2022 )
19–22 September 2022, Lueven, Belgium
doi:10.3850/978-981-18-5180-3_RP15-0049
Study on the Influence of Ventilation Position and Cutting Conditions on Breathable Molds
1Polytechnic University, Japan
2Tokyo University of Agriculture and Technology, Japan
ABSTRACT
During injection molding process, problems due to poor mold release often occur. Therefore, it is required to elucidate the mechanism of the mold release process and to effectively reduce the demolding resistance. In this study, a breathable core mold was adopted to produce a cup-shaped molded product, in order to reduce the demolding resistance. The breathable core mold was designed and fabricated to apply inserts made of porous material to the end and side surfaces of the mold. During demolding process, depressed air was applied through the porous inserts. The effect of the ventilation position, which is the position of the porous insert, and the ventilation direction on the reduction of demolding resistance was investigated. In addition, the effect of cutting conditions on porous inserts on the air permeability of the mold was investigated.
Keywords: Injection mold, Breathable mold, Cutting condition, Demolding force, Demolding resistance.
1Polytechnic University, Japan
2Tokyo University of Agriculture and Technology, Japan
ABSTRACT
During injection molding process, problems due to poor mold release often occur. Therefore, it is required to elucidate the mechanism of the mold release process and to effectively reduce the demolding resistance. In this study, a breathable core mold was adopted to produce a cup-shaped molded product, in order to reduce the demolding resistance. The breathable core mold was designed and fabricated to apply inserts made of porous material to the end and side surfaces of the mold. During demolding process, depressed air was applied through the porous inserts. The effect of the ventilation position, which is the position of the porous insert, and the ventilation direction on the reduction of demolding resistance was investigated. In addition, the effect of cutting conditions on porous inserts on the air permeability of the mold was investigated.
Keywords: Injection mold, Breathable mold, Cutting condition, Demolding force, Demolding resistance.
