Taking the superfinishing of thin-wall hole machining as an example, the design and application of combined carbide core drill and reamer are introduced.
Material removal by machining involves interaction of five elements: the cutting tool, the toolholding and guiding device, the workholder, the workpiece, and the machine.
Through analyzing and accounting evocable error of tool's transmutation during milling process,the compensatory method to the error in NC machining has been put forward.
The tool design,working methods and process fundamentals of the trepanning processing were introduced.It proved that trepanning processing is a more cost-effective and accurate method.
The cutters used in high speed machining(HSM) have poor rigidity, therefore the method fits to HSM of die cavity due to the unfluctuating cutting force characteristic.