LBM of aluminum alloy: towards a control of material removal and roughness

被引：8

作者：

Ahmed, Naveed ^{[1
]}

Pervaiz, Salman ^{[2
]}

Ahmad, Shafiq ^{[3
]}

Rafaqat, Madiha ^{[1
]}

Hassan, Adeel ^{[4
]}

Zaindin, Mazen ^{[5
]}

机构：

[1] Univ Engn & Technol, Dept Ind & Mfg Engn, Lahore, Pakistan

[2] Rochester Inst Technol, Dept Mech & Ind Engn, Dubai, U Arab Emirates

[3] King Saud Univ, Dept Ind Engn, Coll Engn, Riyadh 11421, Saudi Arabia

[4] Univ Lahore, Dept Mech Engn, Lahore, Pakistan

[5] King Saud Univ, Dept Stat & Operat Res, Coll Sci, Riyadh, Saudi Arabia

来源：

INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY | 2019年 / 105卷 / 5-6期

关键词：

Laser beam milling; AA; 2024; MRR%; MRRth; Surface roughness; Optimization; Mathematical models; Scanning; Layer thickness; RESPONSE-SURFACE METHODOLOGY; LASER; OPTIMIZATION; PARAMETERS; MICROCAVITIES; FABRICATION; DRY;

D O I：

10.1007/s00170-019-04365-y

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Achieving the maximum material removal rate (MRRmax) is not always desired in machining especially during laser milling. Actual volume of the material removed during laser beam machining (LBM) is not always precisely equal to the designed volume. Dimensional accuracy of the laser milled feature requires the controlled layer of the substrate removal after each scanning cycle so that the cumulative material removal after full length of canning cycle conforms to the designed depth or geometry. In this research, laser milling of aluminum alloy has been carried out. Percentage of material removal rate (MRR%) and the roughness of the machined surface (SR) are taken as the response indicators. Optimal parametric combinations resulting in MRR% close to 100% with minimum SR have been pursued. Strength of the effects of five significant variables (in terms of one-way, square, and two-way interactions) is also identified. Furthermore, mathematical models are developed to predict the machining responses prior to proceed for actual machining. The research outcomes may be utilized to perform laser milling of AA 2024 (aluminum alloy used in various fields including aerospace industry) with precise control over MRR which ultimately will strengthen the dimensional accuracy of the machined profiles.

引用

页码：1901 / 1915

页数：15

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