Experimental investigation of the effect of processing parameters on densification, microstructure and hardness of selective laser melted 7075 aluminium alloy

Previous investigations into cumulative damage fatigue under uniaxial stress are discussed in conjunction with the parameters relevant to the present experimental investigation. The results of two-level block programme tests on 2L65 aluminium alloy at four values of constant principal stress ratio and at several combinations of two different principal stress ratios are presented and discussed with reference to cumulative damage criteria developed for the case of uniaxial fatigue stress.

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Experimental investigation of the development of microsegregation during solidification of an AlCuMgSi aluminium alloy

Materials Science and Engineering A ◽

10.1016/0921-5093(93)90199-o ◽

1993 ◽

Vol 173 (1-2) ◽

pp. 119-122 ◽

Cited By ~ 20

Author(s):

Jacques Lacaze ◽

Gérard R.J Lesoult

Keyword(s):

Experimental Investigation ◽

Aluminium Alloy

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The Optimization of Processing Parameters and Experimental Investigation on Ni-Based Components Fabricated by Laser Cladding

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.407-408.676 ◽

2009 ◽

Vol 407-408 ◽

pp. 676-679

Author(s):

Xia Ji ◽

Jian Zhong Zhou ◽

Feng Qiu ◽

Su Qing Jiang

Keyword(s):

Experimental Investigation ◽

Surface Quality ◽

Laser Cladding ◽

Primary Dendrite ◽

Processing Parameters ◽

Reheat Cracking ◽

Statistical Analysis System ◽

Laser Cladding Process ◽

Superior Surface ◽

Analysis System

The optimization of processing parameters for laser cladding process based on Statistical Analysis System (SAS) software was investigated and the experimental investigation on Ni-based alloy components fabricated by laser cladding was carried out. The influences of the main processing parameters on the surface quality were analyzed, and the Ni-based components with superior surface quality were obtained by employing the optimum set of parameters. The surface morphology and microstructure of the components were analyzed. Results indicate that the surface of the cladding is rather smooth and the claddings have a unique microstructure consisting of primary dendrite. The laser cladding layer with integrated melt interface and without reheat cracking can be obtained by optimizing the process variables. The investigations show that the components fabricated by laser cladding process have better mechanical properties than that of the conventional manufacturing technology.

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Experimental Investigation of Machining Characteristics of Al 6063 Aluminium Alloy Using Response Surface Methodology

10.4271/2021-01-0283 ◽

2021 ◽

Author(s):

Vipin Kumar Sharma

Keyword(s):

Experimental Investigation ◽

Response Surface Methodology ◽

Aluminium Alloy ◽

Response Surface ◽

Machining Characteristics

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Experimental investigation and numerical analysis of pin-ended extruded aluminium alloy unequal angle columns

Engineering Structures ◽

10.1016/j.engstruct.2020.110694 ◽

2020 ◽

Vol 215 ◽

pp. 110694

Author(s):

Ying Zhang ◽

Yuanqing Wang ◽

Zhongxing Wang ◽

Yidu Bu ◽

Shenggang Fan ◽

...

Keyword(s):

Experimental Investigation ◽

Numerical Analysis ◽

Aluminium Alloy ◽

Extruded Aluminium Alloy

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Experimental Investigation on the Nickel-Based Metal Components Fabricated by Laser Cladding

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.375-376.338 ◽

2008 ◽

Vol 375-376 ◽

pp. 338-342 ◽

Cited By ~ 1

Author(s):

Xia Ji ◽

Jian Zhong Zhou ◽

Hua Feng Guo ◽

Da Peng Xu

Keyword(s):

Experimental Investigation ◽

Laser Cladding ◽

Orthogonal Design ◽

Hardness Measurement ◽

Processing Parameters ◽

Process Conditions ◽

Micro Hardness ◽

Hardness Tester ◽

Cladding Layer ◽

Powder Feed

This paper presents an experimental investigation on the metal components fabricated by laser cladding. In the present study, two process of laser cladding were conducted, that is pre-placed powder cladding and coaxial powder-feed cladding. The effect of processing parameters was studied and optimum set of parameters for the superior surface quality was established by employing the orthogonal design. The fabricated components were subjected to metallographic examinations and micro-hardness measurement. Results indicated that the microstructure of coaxial cladding components was finer than pre-placed powder cladding components. The micro-hardness of the fabricated specimen along and vertical the scanning direction were measured using a HVS-1000 micro-hardness tester with a 200 g applied load. Analysis of the physical properties provided further evidence of differences in micro-hardness produced by different process conditions, and the average micro-hardness value of pre-placed power cladding layer was lower than the coaxial powder-feed cladding layer.

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