Direct metal laser sintering for rapid tooling: processing and characterisation of EOS parts

被引：191

作者：

Khaing, MW

Fuh, JYH ^{[1
]}

Lu, L

机构：

[1] TEC Elect Singapore Pte Ltd, Singapore 569138, Singapore

[2] Natl Univ Singapore, Dept Mech Engn, Singapore 119260, Singapore

来源：

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 2001年 / 113卷 / 1-3期

关键词：

rapid tooling; laser sintering; rapid prototyping;

D O I：

10.1016/S0924-0136(01)00584-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Direct metal laser sintering (DMLS) fabricates metal prototypes and tools directly from computer aided design (CAD) data. The process is popular in rapid tooling (RT),since a suitable metal powder can be used to produce the metal parts and tools. The powder system may be pre-alloyed powder or multi-phase powder. The properties of the RT parts, however, depend on its composition and solidification conditions. Accuracy, wear resistance and mechanical properties are critical on choosing the rapid tooling mould as the production-grade tooling. This study includes the design of metal prototypes which are then fabricated by EOS's DMLS. The EOS material system is a mixture of nickel, bronze and copper-phosphide material. The dimensional accuracy, surface roughness, impact toughness, hardness, and strength of EOS parts are measured. SEM pictures of EOS parts are also thoroughly analysed. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：269 / 272

页数：4