Precision parts processing requires precision, precision, from processing to the completion of the process of workmanship is not a problem, applied in aerospace technology, or other metal equipment, machinery and equipment, the quality of the problem is certain to get protection, the protection of the product, the manufacturer's reputation, or workmanship and other aspects have a certain impact on the la, so that precision parts processing can not be missing.
(1) rough turning: first use the cross slot turning tool to rough the shape of the two ends of the part because of the cross slot turning tool cutting process resistance is small, easy to break the chip, so the use of the cross slot tool on the two ends of the shape of the rough turning effect is better. However, because the titanium alloy material is very easy to heat deformation in the processing, so in the cutting process must use cutting fluid for adequate cooling.
(2) Semi-finish turning: after the part is thoroughly cooled, then use the external offset tool to turn out the reference outer circle of the part, hold the part shape by soft jaws, use the micron lever table to correct the part shape, and perform precision machining on one end of the part, which cannot be machined in place at one time.
(3) Precision turning: after the part profile margin is removed, the part is drilled and bored to ensure the size and accuracy requirements. Correct the part shape again to ensure the dimensional accuracy within 0.003mm, and leave a margin of 0.05mm for the finish turning shape. because the double top takes the inner hole at both ends as the positioning reference, and the shape margin before the final finish turning of the part is small, so the drilling and boring and the finish turning shape are completed in one clamping and correction, and the bore is chamfered well to prepare for the next double top process.
Precision mechanical parts are made of titanium alloy material, the part shape and hole size processing accuracy requirements are very high, requiring surface roughness under normal circumstances need to be precision machined on the grinder, so as to achieve the requirements of the drawing, so that to achieve the drawings provided by the customer's surface roughness and tolerances and other data. Professional staff is very important, good staff on this aspect of workmanship to achieve a rate of up to about ninety percent.