VP15TF, Additional Grade for MMT Threading Series G-Class Inserts

June 01, 2005

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  Mitsubishi Materials Corporation has recently manufactured a range of 45 new types of G-class insert for the MMT threading series. They will be available in VP15TF, a PVD, MIRACLE coated micro-grain cemented carbide grade and will start to be marketed by Mitsubishi Materials Tools Corporation (President: Osamu Takata, Headquarters: 1-6-1 Yokoami, Sumida-ku, Tokyo).

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   For threading applications, the important feature needed from an insert is high plastic deformation resistance. This is especially important when compared to standard turning because of the exacting standards required for correct thread forms. Additionally, a wide range of different insert forms is also necessary because of the many types of threads used throughout industry.
  To deal with the problems peculiar to threading, Mitsubishi Materials Corporation developed a range of high precision G-class inserts. After combining these features with an extremely highly wear-resistant MIRACLE coated VP10MF grade, the company has produced a total of 193 different threading inserts to enhance its’ reputation in the market for high precision and long tool life.

  In addition to the needs of meeting the exacting standards of thread forms, inserts also have to withstand unstable cutting conditions such as asymmetric work pieces and bar feed machining work. In such situations, inserts require an important balance of wear and fracture resistance. To help achieve this balance and solve the inherent problems of unstable threading is where the newly added grade VP15TF grade from Mitsubishi Materials Corporation is utilised.