Tiger-tec Silver PVD Aluminum Oxide Coating

August 13,2012

Related Glossary Terms

  • aluminum oxide

    aluminum oxide

    Aluminum oxide, also known as corundum, is used in grinding wheels. The chemical formula is Al2O3. Aluminum oxide is the base for ceramics, which are used in cutting tools for high-speed machining with light chip removal. Aluminum oxide is widely used as coating material applied to carbide substrates by chemical vapor deposition. Coated carbide inserts with Al2O3 layers withstand high cutting speeds, as well as abrasive and crater wear.

  • coolant

    coolant

    Fluid that reduces temperature buildup at the tool/workpiece interface during machining. Normally takes the form of a liquid such as soluble or chemical mixtures (semisynthetic, synthetic) but can be pressurized air or other gas. Because of water’s ability to absorb great quantities of heat, it is widely used as a coolant and vehicle for various cutting compounds, with the water-to-compound ratio varying with the machining task. See cutting fluid; semisynthetic cutting fluid; soluble-oil cutting fluid; synthetic cutting fluid.

  • cutoff

    cutoff

    Step that prepares a slug, blank or other workpiece for machining or other processing by separating it from the original stock. Performed on lathes, chucking machines, automatic screw machines and other turning machines. Also performed on milling machines, machining centers with slitting saws and sawing machines with cold (circular) saws, hacksaws, bandsaws or abrasive cutoff saws. See saw, sawing machine; turning.

  • grooving

    grooving

    Machining grooves and shallow channels. Example: grooving ball-bearing raceways. Typically performed by tools that are capable of light cuts at high feed rates. Imparts high-quality finish.

  • hardness

    hardness

    Hardness is a measure of the resistance of a material to surface indentation or abrasion. There is no absolute scale for hardness. In order to express hardness quantitatively, each type of test has its own scale, which defines hardness. Indentation hardness obtained through static methods is measured by Brinell, Rockwell, Vickers and Knoop tests. Hardness without indentation is measured by a dynamic method, known as the Scleroscope test.

  • physical vapor deposition ( PVD)

    physical vapor deposition ( PVD)

    Tool-coating process performed at low temperature (500° C), compared to chemical vapor deposition (1,000° C). Employs electric field to generate necessary heat for depositing coating on a tool’s surface. See CVD, chemical vapor deposition.

  • wear resistance

    wear resistance

    Ability of the tool to withstand stresses that cause it to wear during cutting; an attribute linked to alloy composition, base material, thermal conditions, type of tooling and operation and other variables.

Walter USA LLC has unveiled the first indexable inserts with the new Tiger-tec Silver PVD aluminum oxide coating. These indexable grooving and cutoff inserts reportedly deliver superior tool life and increased productivity thanks to the advanced properties of the new coating. These properties include increased high-temperature wear resistance with no compromise in toughness.

The combination of toughness and wear resistance is a plus in any application, but particularly in grooving and cutoff operations because the tools experience several different conditions within the cut. For example, at the beginning of the cut the tools are exposed to a large amount of coolant, with little or none later. Similarly, there is high speed early in the cut with low speed later, and there is low stress on the tool early on, with high stress at the end of the cut.

Because of its optimized surface structure Tiger-tec Silver PVD lowers the friction on the cutting surface. Also, sharp and highly defined cutting edges can be achieved because the Tiger-tec Silver PVD coatings are thinner than conventional coatings. This fact, as well as the particularly smooth surface help to prevent build-up on the cutting edge and provide a high level of process reliability.

This advanced new coating will be made available in four grades: WSM13S, WSM23S, WSM33S and WSM43S. The cutting material WSM13S is suitable for use in stable machining conditions due to its distinctive hardness. The cutting material WSM43S is aimed at unstable clamping arrangements and machining conditions, low cutting speeds and interrupted cuts due to its excellent toughness properties. The middle variants WSM23S and WSM33S cover the relatively large intermediate range. This gives users an optimal grooving solution for each material and each application, with excellent tool life and process reliability.

Additional Products from Walter USA LLC

These indexable turning inserts are designed for applications where a soft cut and high precision is required.  Long tool life is achieved through the WEP10C coated cermet grade with multilayer PVD TiCN TiAlN coating and extra fine cermet substrate grain. Walter's combination of edge Read More
The WNN15 grade delivers outstanding process reliability and long tool life, even at extremely high cutting speeds. This means that it makes indexable insert drilling more cost-effective than comparable PCD tools with immediate effect. The indexable insert drills offer the advantage of multiple Read More
The MP060 face milling cutter with a great number of teeth (z) between 10 and 22, and with diameters from 40 mm, can be used for roughing and finishing large surfaces and flat shoulders. The MP160 (z = 3–4) and MP260 (z = 2–3) shoulder and slot milling cutters, with either cylindrical shank or Read More
In addition to the cooling and geometry, Walter's new WJ30RZ and WJ30RY grades also boost performance because their highly wear-resistant TiAlSiN-based layer applied using HIPIMS coating technology takes the form of a complete coating for 3 and 5xDc (WJ30RZ grade) and a point coating for 8×Dc Read More
The primary application of the Tiger·tec Gold inserts is steels with various tensile strengths that can be machined. These indexable inserts are ideal for use in the automotive, energy, and general metalworking industries, where the inserts can significantly help reduce the cost per component. Read More
Additional improvement in surface quality and stability can be realized with advanced wiper geometry option. Walter offers the new WBH30 CBN grade in inserts with and without MW wiper geometry, and with a negative T-land chamfer for excellent strength in interrupted cuts.
This milling cutter can be used universally for steel, stainless steels, cast iron and difficult-to-machine materials, in face, shoulder, ramping, pocket, and circular interpolation milling operations. Available in diameters of 32-100 mm, a maximum depth of cut of 5 or 8 mm), with Weldon shank  or Read More
There are two indexable insert sizes with facet—SDMX0904ZDR-E27 and SDMX1205ZDR-E27. The M4002 cutter provides a depth of cut of 1.5 or 2.0 mm and is available in diameters of 25-125 mm or 1-4 in. and is ideal for high-speed milling in steel and cast iron, stainless steel and materials with Read More
The standard A2201 is an offset adaptor for reduced radial forces, greater stability and provides more space between the boring bar and the bore wall for improved chip removal with very deep bores. With the A3001 and the A2201 Walter has increased boring bar diameters to 2.5-4-in. and 60-100 mm.
The Xtra·tec XT M5009 face milling cutter has a 45° approach angle, is available in diameters of 25-160 mm (1-6 in.) and provides a depth of cut of 5 or 6.5 mm. It features three pitches for different applications (tools with wide and medium pitch for insert size SN X1205 are designed with carbide Read More