The rough drawing of flange casting is shown in the attached figure(5) Determine cutting parameters and basic working hoursProcess 1 rough turning Φ 100 end face and outer cylinder surface, rough turning B surface and rough turning Φ 90 outer cylinder surface1. Processing conditionsWorkpiece material: HT200 δ B = 220MPa mold castingMachining requirements: turning Φ 100mm end face and cylindrical surface, rough turning B surfaceMachine tool: CA6140 horizontal latheTool: the material of blade is YT15, the size of tool bar is 16x25mm, = 90, = 15,=12,=0.5mm2. Calculation of cutting parameters(1) Rough turning Φ 100mm end face1) It is known that the machining allowance in the length direction of the blank is 3 + 0.. 8 - 0. 7mm, casting draft angle considered, = 4mm2) According to table 2.4-3 in the practical machining process manual, when the cutter bar size is 16 × 25 mm
The rough drawing of flange casting is shown in the attached figure<br>(5) Determine cutting parameters and basic working hours<br>Process 1 rough turning Φ 100 end face and outer cylinder surface, rough turning B surface and rough turning Φ 90 outer cylinder surface<br>1. Processing conditions<br>Workpiece material: HT200 δ B = 220MPa mold casting<br>Machining requirements: turning Φ 100mm end face and cylindrical surface, rough turning B surface<br>Machine tool: CA6140 horizontal lathe<br>Tool: the material of blade is YT15, the size of tool bar is 16x25mm, = 90, = 15,<br>=12,=0.5mm<br>2. Calculation of cutting parameters<br>(1) Rough turning Φ 100mm end face<br>1) It is known that the machining allowance in the length direction of the blank is 3 + 0.. 8 - 0. 7mm, casting draft angle considered, = 4mm<br>2) According to table 2.4-3 in the practical machining process manual, when the cutter bar size is 16 × 25 mm
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