Evaluation of surface integrity of WEDM processed inconel 718 for jet engine application

International Conference on Functional Materials and Chemical Engineering 2017

材料科学;化学工业

Sharma, Priyaranjan^1 ; Tripathy, Ashis^2 ; Sahoo, Narayan^3

Department of Mechanical Engineering, JK Lakshmipat University, Jaipur, India^1

Department of Electronics and Communication Engineering, JK Lakshmipat University, Jaipur, India^2

Department of Electrical Engineering, JK Lakshmipat University, Jaipur, India^3

关键词: Aircraft industries;    Corrosion and oxidation;    Elevated temperature;    Machining methods;    Offset technologies;    Surface feature;    Surface integrity;    Wire electrical discharge machining;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/323/1/012019/pdf
DOI  :  10.1088/1757-899X/323/1/012019

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

A unique superalloy, Inconel 718 has been serving for aerospace industries since last two decades. Due to its attractive properties such as high strength at elevated temperature, improved corrosion and oxidation resistance, it is widely employed in the manufacturing of jet engine components. These components require complex shape without affecting the parent material properties. Traditional machining methods seem to be ineffective to fulfil the demand of aircraft industries. Therefore, an advanced feature of wire electrical discharge machining (WEDM) has been utilized to improve the surface features of the jet engine components. With the help of trim-offset technology, it became possible to achieve considerable amount of residual stresses, lower peak to valley height, reduced density of craters and micro globules, minimum hardness alteration and negligible recast layer formation.