Abstract
This paper presents a study on chip formation in the milling process of Al-Si/10% AlN Metal Matrix Composite (MMC). It focuses on the effect of cutting parameters on the formation of the chip. Al-Si/10% AlN MMC reinforced with 10% AlN particle is a new-generation material that is suitable for manufacturing automotive and aerospace components. Several advantageous characteristics of this material include low density, light weight, high strength, high hardness and high stiffness. The milling process was carried out at dry cutting conditions by using TiN-coated carbide tool insert, which was developed by Standards and Industrial Research Institute of Malaysia (SIRIM). The machining parameters were as follows: a constant cutting speed of 230 m/min, feed rates of 0.4, 0.6 and 0.8 mm/tooth and cutting depths of 0.3, 0.4 and 0.5 mm. The analysis of the chip formation was performed using a video microscope (Sometech, SV-35). The chips were formed because of the shear between the work pieces and the cutting chips during dry milling of Al-Si/10% AlN MMC. These chips were small, short and discontinuous with outer face cracks.
Highlights
AlSi alloy is a Metal Matrix Composite (MMC) that is widely used invarious industrial sectors, such as transportation, domestic equipment, aerospace, military and construction
The milling process was carried out at dry cutting conditions by using the Titanium Nitride (TiN)-coated carbide tool insert, which was developed by Standards and Industrial Research Institute of Malaysia (SIRIM)
The chips formed during the machining process of Al-Si/10%AlN MMC by using TiN cutting tool insert developed by SIRIM were small, short and discontinuous with outer face cracks
Summary
AlSi alloy is a Metal Matrix Composite (MMC) that is widely used invarious industrial sectors, such as transportation, domestic equipment, aerospace, military and construction. Al/Si MMCs consist of two chemically and physically distinct materials that are suitably distributed to provide properties that are not obtainable from either the individual phase or fibrous or particulate phase in the form of continuous or discontinuous fiber, whiskers and particles They are distributed in a metallic matrix containing light metals, such as aluminum, magnesium, titanium and copper and their alloys (Said et al, 2014; Sahin and Sur, 2003; Patel and Patel, 2012; Chawla and Chawla, 2006). Continuous with built-up edge chips are produced when machining ductile materials at a low cutting speed. Friction and wear characteristics of the Si/10%AlN MMC with 10x magnification after heat tool or work piece combination were important in this treatments Table 2 shows the mechanical properties of zone.
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