International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395 -0056
Volume: 04 Issue: 03 | Mar -2017
p-ISSN: 2395-0072
www.irjet.net
A Review on Laser Surface Alloying Kumavat Mukesh Manilal1, Prof. Gujrathi T.V.2, Pimparkar R.M.3, Bhambare M.B.4, Nikam P.S.5, Pawar A.U.6 1
PG Student (Machine Design), SND COE & RC Yeola, Savitribai Phule Pune University, Maharashtra, India Professor, Mechanical Engg. Dept., SND COE & RC Yeola, Savitribai Phule Pune University (Pune), Maharashtra, India 3,4,5,6B.E. Students, Mechanical Engg. Dept., SND COE & RC Yeola, Savitribai Phule Pune University (Pune), Maharashtra, India
2Assistant
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Abstract - Laser alloying is a processing method for
material which utilizes the high power of density available from a laser source to heat and melt the material surface while injecting the alloy elements / compounds powders on the melt pool. Modification of material surface properties can be well influenced by the addition of alloying powders, there is a forming inter-metallic compounds through chemical reactions between the material and powders. An inter-metallic compounds are a solid phase consisting of two or more metallic elements in definite proportions, these phases is generally characterized by very high hard material. A number of parameters such as laser power, beam diameter, laser scanning speed, powder feed rate during large area alloying should be well controlled to achieve the desired enhanced surface properties. Key Words: Aluminium, Laser Surface Alloying, Piston Ring, Ti, Ni.
1.INTRODUCTION Aluminium is the second most used metal after steel. It is bright, shiny, and light. It is in group 3 on the periodic table. Aluminium has an excellent electric conductivity, high strength to weight ratio, with a specific weight of 2.7 g/cm³, which is about one-third that of steel and has high corrosion resistance. It has many applications, especially in combination with other elements to form high strength alloys. Aluminium alloys are divided into wrought and cast products. Cast alloys are directly cast into their final form by one of various methods, such as sand-casting, die or pressure die casting. Wrought alloys are initially cast as ingots or billets and subsequently hot and/or cold worked mechanically into the final desired form. There are 9 series of wrought alloys. These are designated by a 4 digit number that may be preceded or followed by letters. The first digit indicates the alloy group number. The second digit indicates alloy modifications. The third and fourth digits indicate the aluminium purity. Laser alloying is a processing method for material which utilizes the high power of density available from a laser source to heat and melt the material surface while injecting the alloy elements / compounds powders on the melt pool. Š 2017, IRJET
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Modification of material surface properties can be well influenced by the addition of alloying powders, there is a forming inter-metallic compounds through chemical reactions between the material and powders. An intermetallic compounds are a solid phase consisting of two or more metallic elements in definite proportions, these phases is generally characterized by very high hard material. A number of parameters such as laser power, beam diameter, laser scanning speed, powder feed rate during large area alloying should be well controlled to achieve the desired enhanced surface properties.
2. LITERATURE REVIWES 2.1 Problem Definition Wear of material is the process of removal of material from two solid surfaces in solid-state contact. It occurs when solid surfaces are in rolling motion or sliding motion relative to each other. In a well-designed tribological system, the removal of material is a slow process but it is continuous and steady. Similar to friction, the wear of material is also a very complicated phenomenon, which has various mechanisms and factors are involved. Several type of wear phenomena occurs like, wear of an unlubricated metal pair sliding in a dusty atmosphere may be termed dry wear, metallic wear, sliding wear, scratching wear, abrasive wear depending on the emphasis intended. To know the amount of wear undertaken, by direct contact of Al alloy with metal counter surface, it is necessary to experimentally evaluate and measure the corresponding friction and wear. The test to be carried out under various operating condition and under controlled conditions. With a view to generate new performance data, we have chosen three alloys viz. Experiments are to be carried out on standard pin-on-disc machine, at ambient temperature and under dry operating condition. There- fore, the purpose of this work was to determine the dry sliding friction.
2.2 Objectives 1.
To carry out laser beam surface alloying for Aluminium.
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