Additive Surface Graining in Prototype Tooling for Injection Molding

被引：3

作者：

Burggraef, Peter ^{[1
,2
]}

Bergweiler, Georg ^{[1
]}

Abrams, Josef Andrew ^{[1
]}

Dunst, Anna ^{[1
]}

机构：

[1] Rhein Westfal TH Aachen, Lab Machine Tools & Prod Engn WZL, Campus Blvd 30, D-52074 Aachen, Germany

[2] Univ Siegen, Chair Int Prod Engn & Management, Paul Bonatz Str 9-11, D-57076 Siegen, Germany

来源：

JOURNAL OF MANUFACTURING AND MATERIALS PROCESSING | 2022年 / 6卷 / 03期

关键词：

additive manufacturing; additive tooling; injection molding; surface graining; micro structure;

D O I：

10.3390/jmmp6030054

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Surface properties of injection molded parts have a strong effect on the visual and haptic perception of the parts by customers. Especially for injection molded automotive interior parts, grained surfaces can often be found. In conventional tooling, graining requires separate process steps. This makes the realization of grained injection molded prototype parts very complex. By additive manufacturing of injection molds in prototype tooling, it is possible to print micro structures into the mold surface in one printing operation. An injection mold with four different graining structures varying in depth and distance was designed and additively manufactured. The specification regarding the surface graining was analyzed by means of roughness measurements of the CAD model, injection mold and injection molded parts. Results show the feasibility of highly controllable additive surface graining.

引用

页数：11

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