Surface engineering by co-injection moulding

被引：26
|
作者：
Alcock, JR [1 ]
Logan, PM [1 ]
Stephenson, DJ [1 ]
机构：
[1] Cranfield Univ, Sch Ind & Mfg Sci, Cranfield MK43 0AL, Beds, England
来源：
SURFACE & COATINGS TECHNOLOGY | 1998年 / 105卷 / 1-2期
关键词：
co-injection; powder injection moulding; process modelling; sintering; wear/corrosion resistance;
D O I：
10.1016/S0257-8972(98)00443-5
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A novel process, powder co-injection moulding (PCM), a development of powder injection moulding is described. A twin-barrel injection moulding machine has been used to inject two different powder/binder mixtures sequentially into a mould. The new process allows surface engineering during powder injection moulding rather than as a post-production stage in the manufacturing cycle. Two examples of co-injection moulding are described. The first considers a polymer component having a particulate or fibre-reinforced skin layer. The second discusses the production of dense, layered ceramic or metal components having a corrosion- or wear-resistant surface layer. Modelling of the PCM process is being undertaken using a commercial finite-element modelling program, G-Mold and an example of how this may be used to predict coating thickness is presented. (C) 1998 Elsevier Science S.A.
引用
收藏
页码：65 / 71
页数：7
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