Three industries widely used hard cutting tools
Through many years research and practical, hard cutting tools has realized turning instead of grinding which bring huge economic profit. In current times, hard cutting tools mainly used in hard turning high hardness materials work piece, and it is widely used in the following industry: Mill Rolls, Pumps and Automotive Parts industry.
Halnn will analyze the reasons that hard cutting tools can be used in these industries.
Part 1 The reasons of hard cutting tools widely used in mill rolls, pump and automotive industry
(1) Most Mill Rolls are castings ,and it will have some defects such as sand ,air-hole, and it brings difficulty for machining
(2) Most automotive parts will use heat treating process to improve the performance of the work piece, and it will have high hardness after heat treating, and will be probably deformed.
(3) The three work piece belongs to consumption, and has high rate in machinist industry, has huge requirement.
Part 2 The processing efficiency with hard cutting tools in Mill Rolls，Pumps and Automotive Parts industry
1. Mill Rolls industry
Many manufacturers used chilled cast iron and high chrome cast iron as the main materials of the mill rolls. Because of high hardness and casting defects ,the mill rolls will difficult to machining with normal cutting tools ,so many manufacturers will use hard cutting tools rough and finish machining mill rolls .Superhard tools not only improve the processing efficiency (improved 2 ~6 times) ,but also lower the processing cost(including machining time ,power cost and insert costs)
If one mill rolls manufacturer use Halnn BN-K1 Solid CBN inserts machining chilled cast iron with hardness HS60~80, cutting speed improved 3 times.
2. Pumps industry
The pumps parts are widely used in mining machinist, heavy machine and powder industry. Because of the bad working environment ,when machining the pumps ,it often use cast iron parts with better performance so that make sure the usage lifetime. But for so high hardness pump work piece, such as the guard with hardness HRC63~67, it will be difficult to machine.
Traditional process is annealing first, then rough machining, last quenching. If with hard cutting tools, especially Halnn Tools researched BN-K1 CBN insert ,it will just only one step to hard turning ,saved two processes, saved much time and powder ,lower the processing cost. And now about 70~80% pump industry manufacturers are using hard cutting tools.
3. Automotive Parts industry
Many automotive parts belongs to hardened parts, it will often meet problems on machining hardened parts. For example , when machining bearing inner ring which main materials are GCr15 steel ,hardness HRC60,the diameter is 285mm, it will use grinding first ,but the allowance will not Uniform, and it need 2 h. After using hard cutting tools cbn inserts, it only need 45min to machining a inner ring.
Part 3 Conclusion
Even though above three industries are widely used hard cutting tools, but there are also many manufacturers know little about hard cutting tools on hard turning ,and thought that it only can use grinding process on machining hard materials, and the costs on hard cutting tools is so high.
So Halnn Tools which devote to researching new hard cutting tools materials to solve the problems on hard turning will help you know more about this new technology. More solutions, please click http://www.halnncbn.com/Solution/, Or contact with us info@halnntools.com, Whatsapp:+8615617635382