Batch and production conditions. Computer gong processing | Dongguan high-speed computer gong processing | Dongguan mold processing | Dongguan Mechanical parts processing | CNC processing as shown in the figure of the drive shaft, the diameter is small, the diameter of each section of the outer circle is not big, round steel blanking is optional. The diameter of the gear shaft shown in the figure has a big difference. In order to save materials and processing time, if the batch is large and forging conditions are available, the forging blank should be selected; otherwise, round steel blanking is also selected. The bearing cover is made of cast iron, and the blank should be cast. Gear, its material is 40 steel, and the diameter of the outer circle is small, and the outer circle is short. Round steel can be used for blanking. Due to the large diameter of the outer circle and hole of the gear, the gas cutting blanking of steel plate with corresponding thickness can be selected for a single piece, and the forging can be used to forge the ring blank in large batch, which can not only save materials, but also reduce the processing time, and the mechanical properties of the forging blank are also good.
2. Determine the processing sequence of parts
The processing sequence should be determined according to the type, structure, size, machining accuracy, surface roughness and heat treatment of the blank.
3. Determine the processing procedure
Determine the machine tool, workpiece clamping method, processing method, processing size and detection method used in each process, including the allowance for the next process. Computer gong processing | Dongguan high-speed computer gong processing | Dongguan mold processing | Dongguan Mechanical parts processing | CNC processing generally small and medium-sized parts, the outer cylinder, inner cylinder and plane all refer to unilateral allowance. In single piece small batch production, the larger blank size is taken as the fire value, otherwise, the smaller value is taken. Total allowance: 3-6 mm for manual molding castings, 3-7 mm for free forging or gas cutting parts, and 1.5-2.5 mm for round steel. Process balance: 0.8-1.5mm for semi finish turning and 0.4-0.5mm for high-speed finish turning.
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