POM is easy to crack when the steel quality, and the precision machinery parts processing solution POM and steel, it is a kind of non-metallic materials, it has good tensile strength, impact toughness, also has excellent electrical insulation;
Defect is heating can decompose, molding shrinkage ratio is large, in precision machinery parts processing, forming a relatively nylon difficult.
Shenzhen Xavier precision components co. , LTD. Is a company dedicated to precision machinery parts processing, can be processed in addition to common metal materials, include nonmetal materials, has a wealth of experience in the field of precision machining
One of POM is we often processing, the following is by the engineer for rounding this kind of material in the processing of the problems and solutions.
POM material processing of particular concern is that it is easy to crack, there are two common forms of cracking: a crack is obvious, at the beginning of another kind of hard to see how, over a period of time after the crack will grow big, after if didn't solve the problem, batch processing, will seriously affect the quality of the precision machinery parts processing, so as to affect the product delivery date.
So how to prevent POM material craze has become urgent problems.
Turning processing note: lathe speed shoulds not be too fast, feed amount and turning also shoulds not be too big, cutting tool rake Angle and back Angle may be larger, but should not be too big, sharp edge must be woven.
Common high speed steel cutting tool rake Angle 25 o -
Take 10 o - after Angle
20 o, chuck clamping force should be as small as possible, must be cooled and compressed air cooling or solid lubrication effect is better, oily liquid.
Planing processing: plane level unfavorable use flat knife, knife application processing, and the cutting tool Angle is smaller, after the flat DaoHui POM material split, even impellers, which affects the quality of precision machinery parts processing.
Drilling process, drilling process is easy to cause the POM material cracking a way of processing, should be paid attention to when the actual drilling, such as drill more than 10 mm diameter aperture, as far as possible with little bit gradually expand processing, every time the reaming amount less than or equal to 5 mm effect is better, thin-walled hole can also adopt this way.
The above information is derived from the shenzhen precision machinery parts processing manufacturer for 15 years, more products please click on the link to see http://www for details.
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