What are the differences between the process characteristics of turning milling compound machining plane and solid
The plane processing of turning milling compound processing refers to the milling, drilling, reaming, boring, tapping and other processing procedures of plane workpieces; Three dimensional machining refers to the machining of three-dimensional surfaces under the control of the interpolation function of the CNC system of the machining center. The specific machining objects include complex surface workpiece and special-shaped contour surface workpiece.
Compared with the plane processing, the plane processing of the machining center is relatively simple in terms of processing difficulty and programming difficulty. Typical plane machining includes cavity machining and contour machining.
Cavity machining is to process flat bottomed parts with closed boundary contours. It also includes cavity area machining and contour machining. Dongguan turning milling composite processing generally uses end milling cutter or forming cutter. In terms of steps, it is divided into two steps. The first step is to cut the cavity, mainly using two cutting routes. Whether circular cutting or row cutting, the common point is to ensure the entire cavity area. The cutting area shall be clean without leaving dead corners and damaging the contour. At the same time, the overlapping amount of repeated passing shall be minimized. The second step is to cut the contour, which is usually divided into rough machining and finish machining. The tool path of the former is to offset the milling cutter radius from the contour of the cavity boundary to the inside and from the contour of the cutter to the outside. The machining allowance of the latter is formed.
With the continuous development of the industry, the demand for machining complex surfaces and special-shaped parts is also increasing. This kind of parts not only must meet the standard of shape accuracy, but also put forward higher requirements for its surface quality. Therefore, when machining such parts, the machining center used must have the function of three-dimensional displacement.
The feed system of the turning milling compound machine, with the interpolation function of the NC system, can carry out multi axis linkage processing, thus realizing the three-dimensional curve displacement of the cutter. Therefore, when encountering such complex parts as above,