Graduation thesis NC machining process analysis and machining programming (with drawings) The machining process analysis has been completed, but the NC milling machine and engineering editor can't edit it, so please ask online experts to help me edit the machining programming. Urgent! Urgent! Urgent! Please. Thank you. The parts shown in the NC milling process analysis diagram X 1 are machined on XK7 12 CNC milling machine. The material is Q235B, and the blank length× width× height is (70 ㎜× 58 ㎜×1㎜). The process analysis is as follows: 1. Process analysis of part drawing This part is mainly composed of plane and convex-concave bearing seat curve, in which the surface roughness of hole system is Ra 1.6, and the two planes are RC1.6; ; The material of this part is Q235B aluminum alloy steel, which has good machinability. Attached is the part drawing. See Section II for the processing card of parts. 2. Determine the clamping scheme. According to the structural characteristics of the parts, choose the flat pliers for clamping. The vice is a machine tool fixture with two parallel clamping surfaces. Its main purpose is to maintain the shape and position tolerance of the workpiece such as parallelism and verticality through two working faces, so as to ensure the machining accuracy of the parts in the process of rapid clamping. 3. Determine the processing sequence When processing this part, I determine the processing sequence according to the principle of rough machining first and then fine machining. Drilling → milling plane → rough machining of bearing housing periphery → semi-finish machining of periphery → finish machining of periphery → rough machining of bearing housing groove → finish machining of bearing housing groove. 4. Tool selection: φ 10 flat cutter is used for plane milling rough machining and bearing housing rough machining, φ 4 flat cutter is used for semi-finishing milling bearing housing rough machining, φ 2 flat cutter is used for finishing milling bearing housing rough machining, φ 8 flat cutter is used for rough milling bearing housing groove, and φ 2 flat cutter is used for finishing milling bearing housing groove. See Table 2 for the machined surface of the selected tool. Table 2-2 Machining tool blades for die cavity bearing seat. Product code XXXXX part code xxxxx machining drawing number X 1 product name xxxxx part name cavity bearing die number tool machining surface remarks tool number name specification number tool length/㎜1φ/kloc-0+00 high-speed twist drill 1 30 boring φ 10 boring 2t 02 φ/kloc-0. 0 high-speed steel end milling cutter 1 20 plane T04 φ 2 carbide milling cutter 1 20 milling peripheral edge finish machining 5 T05 φ 8 high-speed steel end milling cutter 1 20 milling bearing groove rough machining 6 T04 φ 2 carbide milling cutter 1 20 milling bearing groove finish machining compilation xxx review xxx approval xxx date XXX * *No./KLOC-. Cutting parameters The material of this part is Q235 aluminum alloy steel with good cutting performance. A allowance of 0. 15㎜ is reserved for the rough milling of the bearing seat mold, so as to ensure that the parts meeting the required size can be processed after the shape processing is completed. When selecting the spindle speed and feed speed, first check the cutting parameter manual to determine the cutting speed, and then calculate the feed data according to the formula n= 1000v/πd, as shown in Table 5-2: Processing Technology Card of Combined Cavity Bearing Block.