Extension share cutting tools and basic processing order for CNC machining

extension share the cutting tools and basic processing sequence for CNC machining 1. Pull board a. With Phi63 R6 knife thick-Phi32 R6 knife, please root-Phi25R12. 5 Half finish milling-Phi20R10 (Single knife)Clear angle-Phi20R10 (Single knife)Fine milling-Phi10R5 clear angle-Phi6R3 clear angle B. With Phi63 R6 knife rough milling (Deep cavity steep wall type surface)-Phi25R12. 5 clear angle-Phi25R12. 5 Half finish milling-Phi20R10 (Single knife)Fine milling-Phi10R5 clear angle-. Phi6R3 clear angle c. φ for plate mouth line 63 R6 welding blade knife is processed, but the corner must be milled first with a Flying Knife. The amount of knife per knife is 3-5mm, F ≥1500. D. When cnc machining of the type surface, the rough milling, semi-fine milling and fine milling cutter must cross, and the knife path of the light knife must be consistent with the flow direction of the material. E. In rough milling, semi-fine milling, and fine milling, the extension ribs must be avoided first. 3 dprofile is processed along the center line. F. With Phi63 R6 knife rough milling F ≥2000, knife spacing ≥5mm (Desirable 45-48mm)The margin is 0. 4mm. Phi25R12. 5 Half finish milling, F ≥4500, knife spacing ≥2. 5mm, the margin is 0. 2mm. Phi20R10 (Single knife)Finish milling, F ≥4500, knife spacing ≥0. 3mm. The drawing surface and the inner surface of the g-drawing concave plate need to be processed separately regardless of rough milling, semi-finish milling and finish milling. H. At the plane of the pressing surface and the inner surface, it is milled with a large flying knife, and attention should be paid to the connection knife and surface roughness. I. The pull gap considers a material thickness according to the benchmark requirements of several plates. J. For deep cavity steep wall type face, if you use 63 R6 knife, it is necessary to analyze the strong state and requirements of the number of plates. The rough processing and finish milling can be used in the divided areas instead of the rough opening, and the rough processing cannot be used. K. The mold surface work area beyond the requirements of the casting type, with φ 50R25 knife rough milling, 0 lower than the work area. 5mm. L. The guide surface of the guide plate is generally processed according to the size of the picture. 02-0. 03mm, but after the assembly is guaranteed, the sum of the gaps between the two Guide surfaces shall not be greater than 0. 1mm. M. All kinds of process holes in the prototype need to be processed. 2. Trim Plate a. . Each plane of the upper and lower plate seats is processed directly according to the size of the drawing. Pay attention to the roughness requirements, smooth the plane, clear the angle in place, and process the secondary digital milling datum plane and the center line datum hole. Center Line reference hole size is10 (3). B. Two times of milling and processing surface:63 R6 knife rough milling ,-Phi32 R6 knife local please angle-Phi25R12. 5 Half finish milling-Phi20R10 light knife-Phi10R5 clear angle-. Phi6R3 clear angle. . Cutting edge: with φ63 R6 knife rough milling-Phi32 R6 knife local please angle-Phi50R10 light knife-Phi10R5 local clear angle-. Phi 6R3 clear angle of various punching and concave hole and process hole (Including reference hole, CH hole)According to the map processing in place. 3. Flange shaping plate: according to the same processing method of drawing plate and trimming plate and cutting edge.

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