Effect of Cryogenic Cooling on Mechanical Properties and Cutting Force of 6061 Aluminum Alloy

Abstract

With the increasingly strict environmental protection requirements, cryogenic cutting technology as an environmentally friendly machining technology has received more and more attention. In this article, the affect of cryogenic cooling on the mechanical behaviors, cutting force and swarf shape of 6061 Aluminum Alloy were studied. Test result display that cryogenic increase strength of materials and reduces the plasticity of the material. Cryogenic cooling improves the cutting force and improves the chip breaking effect.

An Experimental Study on Ultrasonic Vibration-Assisted Turning of Aluminum Alloy 6061 with Vegetable Oil-Based Nanofluid Minimum Quantity Lubrication

“…After being mounted on the ultrasonic horn, the rake angle γ0, clearance angle α0, and side cutting edge angle Kr of the tool are 0 • , 7 • , and 5 • , respectively, as shown in Figure 2b. Aluminum alloy 6061 is used as the workpiece, and its mechanical properties are shown in Table 1, which were tested by our co-author in a previous study [28]. The radial turning mode is adopted in this work, and ten experiments designed by the single factor experimental design method are shown in Table 2.…”

“…Table 1. The mechanical properties of AA 6061 [28]. CT: conventional turning; UVAT: ultrasonic vibration-assisted turning; MQL: minimum quantity lubrication with palm oil as lubricant; GN-MQL: MQL using graphene nanosheets mixed in palm oil; DN-MQL: MQL using diamond nanoparticles mixed in palm oil; GN+DN-MQL: MQL using diamond/graphene hybrid mixed in palm oil.…”