Shenzhen precision machinery spare parts processing stainless steel material to understand the content of the stainless steel has the characteristics of high temperature resistant, high strength and high hardness, for precision machinery spare parts processing after assembling using benefit a lot.
But in the processing, there are many problems, also need precision processing enterprises urgently need to solve.
Due to the mechanical properties of stainless steel is higher than the general steel, especially the elongation, reduction of area and impact value is very high, when the turning processing, is not easy to be cut off, compared to a certain volume of stainless steel and other steel products, the energy dissipations of the chip which consumes 50% more energy than the latter, we used to go to school in physics textbooks, metropolitan doing work is converted into heat energy, therefore, when cutting stainless steel, the cutting temperature is much higher than ordinary steel, this increases the tool cutting heat, tool wear and tear, behind which will affect the quality of the precision machinery parts processing.
In addition, because of the large stainless steel material toughness, so in the process of cutting and cutting tools, strong affinity and due to the front of the cutting tool and is cut from the metal surface is in big pressure, high temperature and cutting speed, so easy to produce 'knife tumor'.
Stainless steel material, another is characterized by low thermal conductivity, thus the precision machinery parts processing, the cutting heat comes not in time, accelerated the tool wear.
Will also affect the quality of precision machinery parts processing.
Stainless steel scraps is not easy to break, create difficult to machining
Due to the high elongation of stainless steel materials, tenacity is big, so in the process of cutting chip is not easy to roll up and broken, in this way, both affect the normal conduct of the cutting and easy to cut precision parts processing surface, even collapse and damaged cutter blade.
According to the above analysis, the stainless steel materials during the turning processing, Xavier precision components co. , LTD. , the engineer put forward the following Suggestions.
Reasonable cutting tool geometry parameter choice.
In order to make the chip easy to forming and cutting light, choose the larger rake Angle, reduce plastic deformation of chip, reduce the cutting force and cutting performance is good, which can relieve cold work hardening trend, improve the endurance of a tool, so as to effectively guarantee the accuracy of precision machinery parts processing.
Selection of cutting parameter to the right.
High cutting speed, cutting tool durability will be significantly reduced, on the contrary, the cutting speed is too low, not easy broken crumbs, and chip easy adhesion, thus collapse edge.
Generally can choose cutting speed according to the diameter of the working size, diameter of less than 50 mm, cutting speed can be slightly larger, more than 50 mm in diameter, cutting speed can be smaller.
Cooling lubricants selection is appropriate.
Cooling lubricants have oil and water.
Choose the appropriate cooling lubricants, to improve the precision machinery parts processing surface finish is of great benefit, after general use emulsion or vulcanized oil.
Choice of cutting tool materials: for cutting tool material can choose carbide blade, the blade of good wear resistance, high hardness, good toughness.
The above information is derived from the shenzhen Xavier CNC precision machining manufacturer company.
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