Обший каталог Yamawa 2016 - 2017 - страница 866

34. Materials used for Cutting Tools
■Materials
Description of products


We have been seeking the best materials used for cutting tools since the company establishment because the performance of tools are depending
on the selection of materials used. Major materials used in our company are listed below.


(1) Taps HSS : Equivalent to SKH58, SKH51, SKH56
Powder HSS (SKH10, High Vanadium High cobalt material)

Carbide : Cemented Carbide Materials of ultra micro grain

(2) Dies HSS : SKH51, SKH56
Alloy Tool Steel : SKS2, SKS21, SKS3, SKS31
(3) Center Drills and Centering Tools HSS : SKH51, SKH56
Powder HSS (SKH10, High Vanadium High cobalt material)

Carbide : Cemented Carbide Materials of ultra micro grain


For product's improvement, material may be changed without notice.

■Circumstance of tools' materials
Tensile strength, heat resistance, corrosion resistance and accuracy are the important features required of tool’ s materials. These requirements
have been changing due to miniaturization and lightening of parts.
And manufacturing methods, as well, have been changing because of necessity of economical efficiency such as saving process/cycle time while
parts become hard-to-machine type and their hardness increases.
As a result, the demand of industrial tools by users has become very tough.
For example, higher wear resistance and chipping resistance are required in the area of hardness, and heavy cutting process or high-speed cutting
are required in the area of cycle time.
Moreover, product accuracy with its rigidity, laborsaving brought by uniformity, and systematic reliability are highly required.
Therefore, technological improvement of tool steels never stops developing so that they satisfy users needs.
The major materials used for taps are already listed in the chart, but those materials are ready to develop from conventional alloy tool steels and
current high speed steel into next generation materials such as cemented carbide and cermet materials.
New materials are developed even in high-speed tool steel area, such as SKH51 and SKH58 from SKH2, and they are moving into high performance
materials, such as high vanadium, cobalt, and powder HSS made of high vanadium and high cobalt contents.
As the material for round dies, were alloy tool steels mostly used because of the relationship with the use of adjustable round dies. However, for
the hard-to-machine material. die material has been shifted into High Speed Steel.
Major materials for center drills and centering tools are high speed steel materials, but they have been shifting to cobalt type or even cemented
carbide from SKH51.
We keep on seeking to develop our technology to meet user's needs and are trying to find the best materials in collaboration with steel
manufacturers.
Information
Technical


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