Influence of Different Abrasives Mixtures on Abrasive Water Jet Drilling of Die Steel
Abrasive Water Jet Machining (AWJM) is a non-traditional machining process used for cutting an extensive range of materials by means of a mixture of water and an abrasive substance. The present study describes the effect of abrasive materials and stand-of
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Abstract Abrasive Water Jet Machining (AWJM) is a non-traditional machining process used for cutting an extensive range of materials by means of a mixture of water and an abrasive substance. The present study describes the effect of abrasive materials and stand-off distance on AWJ drilling of die steel. Different abrasives namely Silicon Carbide, Garnet, and abrasive mixtures of silicon carbide and garnet in the ratio of (60:40) were used in this study. The Output responses, namely cylindricity, circularity, and surface roughness of the drilled surfaces were analyzed. The experimental results showed that the mixture of the different abrasives increases the cutting ability of AWJ performance as compared to single type abrasives, namely, garnet or Silicon Carbide in die steel. Keywords Abrasive water jet machining · Cylindricity · Surface roughness and roundness
1 Introduction The Abrasive Water Jet Machining (AWJM) process provides a high-quality cutting with a great surface finish, therefore it is advantageous in the manufacturing of several components in various industries such as the automotive, aerospace and defence sector Natarajan et al. [1]. It is an environmentally friendly process. Water jet cutting requires no cooling or lubricating oils, so there are no chemically contaminated chips to dispose of. It generates no noxious fumes during the cutting process. The AWJM process utilizes a mixture of water and abrasive to erode material from K. Balaji (B) · N. Yuvaraj Department of Mechanical Engineering, Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, Chennai, India e-mail: [email protected] N. Yuvaraj e-mail: [email protected] © The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2021 N. Gascoin and E. Balasubramanian (eds.), Innovative Design, Analysis and Development Practices in Aerospace and Automotive Engineering, Lecture Notes in Mechanical Engineering, https://doi.org/10.1007/978-981-15-6619-6_56
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the target surface. It uses the kinetic energy of water particles to erode the material by microchipping action. The AWJM process has several predominant process parameters, i.e., water jet pressure, transverse speed, abrasive mass flow rate, standoff distance, abrasive grit size, etc., which affect the performance characteristics (i.e., surface roughness, kerf top width, taper angle, cylindricity, and material removal rate). Materials commonly cut with a water jet include textiles, rubber, foam, plastics, leather, composites, stone, tile, glass and mainly, metals. This process does not require secondary operations to smooth the edge finish. Abrasive is one of the effective process parameters in AWJM process. Abrasive type and size play a crucial role in the production of better surface finish. Recently researchers have attempted or adopted various techniques for the improvement in AWJM performance features on hard materials. In this study, mixing of two abrasives has been used for t
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