Ultrasonic milling is proved as one kind of effective technology to improve the work ability of Titanium alloy, Aluminum alloy and stainless steel. The ultrasonic milling process has more advantages than traditional milling. Comparing the ultrasonic process effect among steel, Titanium alloy, Aluminum alloy and stainless steel, the most prominent surface quality improvement are Titanium alloy and Aluminum alloy, the most prominent cutting capability improvement is stainless steel, and the most prominent quality improvement in side work piece is steel.
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