With the new WSM13G, WSM23G, WSM33G and WSM43G grades, Walter is expanding its Tiger·tec Gold range for grooving applications and also making it suitable for universal use. The diversity of the new grades ensures their suitability for everything from grooving and parting off to groove-turning, in virtually every material.

Walter developed the multi-layer Tiger·tec Gold PVD insert coating especially for the main types of wear that occur when grooving. The company says that the special performance of the inserts is credit to the combined TiAlN and TiSiN multi-layer coating. This makes the layers of the grades hard and resistant against both flank face wear and plastic deformation.

Complementing the multi-layer coasting is a special post-treatment process that ensures smooth rake faces, less friction and more toughness. Walter is offering the grades in four versions with different levels of hardness or toughness.

The WSM33G universal grade is suitable for 80% of grooving applications in steel, stainless and heat-resistant alloys. If the level of wear is too high, users can choose from two harder grades for ISO M, S and P materials. The WSM13G is suitable for finishing and medium machining with uninterrupted cutting, while the new WSM23G is for stable conditions, high-speed cutting and where machine shops are using oil as the cooling lubricant.

For particularly heat-resistant materials such as Inconel 718, Walter says that the WSM13G grade achieves maximum tool life in combination with 150 bar precision cooling. If a tougher grade is necessary, the WSM43G is suitable for interrupted cutting, machining at low cutting speeds or unstable conditions.

Walter is offering the new grades for all its grooving systems.

More information www.walter-tools.com