CBN tool "to the car instead of grinding" to effectively reduce the cost of processing
Release time:
2020-09-22
In recent years, the plant space has been seriously, compared with the CBN tool, the grinding wheel is relatively large and bulky, so it is difficult to store. CBN tool is very small, and do not need to add a new machine tool can be used to replace the grinding machine, thus saving the space of the factory. Because the cost of CBN cutter has been greatly reduced in recent years, it has created the condition for the popularization and application of the vehicle on behalf of the mill. Cost not only refers to the cost of cutting tools, but the cost of each part of the manufacturing, with a longer tool life and the low cost of each cutting tool, CBN provides a most economical way to hard processing. In addition, in terms of waste disposal and environmental protection, the car on behalf of grinding is better than grinding. The grinding will produce a mixture of grinding chips and coolant, which is no longer the use of waste, will pollute the environment. "To the car on behalf of the mill" produced waste can be used, which is concerned about the environmental protection today is particularly important.
"Using the car instead of grinding" refers to the use of CBN tool or ceramic tool to process hardened workpiece. By turning instead of grinding the new technology of cutting hardened steel, gray cast iron, ductile iron, powder metallurgy and special materials. Of course, there are some materials such as bronze is not suitable for the use of the car on behalf of grinding. By turning instead of grinding for turning, surface processing, tapping, milling, slotting, machining, turning cone. According to the United States, the article reports, "the car on behalf of the mill" so that the workpiece is always maintained at 16 M. Under normal conditions, the finish can reach 6 to 8 M. At present, turning instead of grinding the new technology in many industrial sectors use, such as automobile manufacturing plant in this way on the drive shaft, all kinds of shaft transmission chain, engine, brake disc and brake rotor of semi finish machining and finish machining; aircraft manufacturing plant in this way making aileron gear and gear rack, from the field to the mills can be seen everywhere in car generation grinding method of application. Machine tools, tools, heavy trucks, agricultural machinery and equipment, medical equipment, canned mold, auto parts to the car on behalf of the mill as part of its production process.
The advantages of "using the car instead of grinding" technology:
1 the cost of the car on behalf of grinding is low, generally only 1/4 of grinding;
2 with the "car on behalf of the mill" does not need special tools, special machinery and fixtures, and grinding is required to use the grinding machine, grinding machine on behalf of the existing NC or CNC turning center;
3 high productivity, because the cutting speed of CBN tool is high, so that productivity is greatly improved, saving a lot of time.
Funik R & D and production of whole glomerocryst (FBN) tool to the machining size can be controlled in the -0.01mm, roughness can be control in Ra0.8-1.6 mu m or less, reducing the purchase of a grinder equipment investment, a clamping to complete complex shaped surface finish machining, shortening the production rhythm. Dry cutting, energy saving and environmental protection advantages, the successful implementation of green energy saving and environmental protection "turning instead of grinding way, in a gear bearing processing industry are widely used.
The rapid development of the "car on behalf of grinding" is based on the CBN tool technology progress in the past few years, the early 90's can only be used in a small number of CBN tool for the car on behalf of grinding. At present, the user's choice is more than 10 times. Furthermore, speed is greatly improved, in the early 1990s to iron the maximum cutting speed about 152m/min, now at high cutting speed up to 1524m/min. Most of the continuous hard steel cutting speed in 90 ~ 150m / min, feeding amount is 0.05 ~ 0.2mm/r, cutting depth reached 0.1 ~ 0.5mm. CBN applicability of the expansion of the past can not be used for brittle workpiece, and now the hardness of different parts can be processed.
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