Study of the effects of process parameters on deposited single track of M4 powder based direct energy deposition

被引：25
|
作者：
Lee, Eun Mi [1 ]
Shin, Gwang Yong [2 ]
Yoon, Hi Seak [1 ]
Shim, Do Sik [3 ]
机构：
[1] Chonnam Natl Univ, Dept Mech Engn, Kwangju 500757, South Korea
[2] KITECH, Green Mfg Proc Technol Ctr, Gwangju 500460, South Korea
[3] Korea Maritime & Ocean Univ, Div Mech Engn, Busan 49112, South Korea
来源：
JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY | 2017年 / 31卷 / 07期
关键词：
Direct energy deposition; High-speed steel; Process parameter; Response surface method;
D O I：
10.1007/s12206-017-0239-5
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The Direct energy deposition (DED) process has been a popular method for improving surface properties in mold industries. The deposited bead geometry and dilution depth, representing the thickness of the melted substrate mixed with deposited materials, play an important role in determining the mechanical properties of the deposited part. Therefore, selecting and controlling the DED process parameters is very important for obtaining the optimal deposited bead geometry. This study, investigated the effects of process parameters on deposited single-track geometry using AISI M4 powder. The cross-sectional profile of the deposited bead was analyzed to understand the effects of each processing condition on bead geometry. Moreover, a mathematical formula for bead geometry prediction was derived using the Response surface method (RSM), which can be used to effectively control the process variables to achieve the desired qualities.
引用
收藏
页码：3411 / 3418
页数：8
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