The cutting of titanium alloys is powerful cutting, so the machine tool tool spindle must have large driving power and high-power powerful cutting function. In the aviation industry, the machining of titanium alloy components is mostly cavity milling. In order to facilitate chip removal, the cooling and lubrication device must be managed well, so that a large amount of high-pressure cooling lubricant can be sprayed directly on the cutting tool. blade.
In this way, on the one hand, the tool is cooled, and on the other hand, the chips can be flushed out of the processing area in a better and timely manner to prevent the chips from being cut multiple times, which will reduce the tool life and scratch the processing surface. In order to make the machine tool have high-power cutting function, the German Heller Company has specifically designed the machine tool structure and coordinate axis structure, and equipped it with a powerful cutting swing unit with excellent rigidity to install the tool spindle, so that the machine tool can operate vertically, horizontally and spatially. The same cutting power can be produced at any angle.
The characteristics of titanium alloy are high strength and poor thermal conductivity. In order to achieve the cutting efficiency like aluminum processing, the cutting parameters should be increased as much as possible, that is, the metal feed and the depth of cut should be increased, which will lead to an increase in the cutting force, which may cause static deviation between the workpiece and the tool, thereby causing the parts to The shape accuracy will deteriorate or the machining process will be unstable, which will also accelerate the wear of the tool. For this reason, machine tools used for titanium alloy processing must have high power and the best possible static and dynamic characteristics (high static and dynamic stiffness); they also need to be equipped with corresponding high-pressure cooling and lubrication equipment to facilitate low-speed, high-torque processing. Remove chips in a timely manner to reduce tool wear and reduce heat generated during machining.
