MD340 Supreme and MD344 Supreme

February 04, 2023
Carbide Milling Cutters Help Reduce Tool Costs

Walter has introduced the MD340 Supreme and MD344 Supreme solid carbide milling cutters for machining steel (ISO P). Despite a growing trend towards lightweight materials, steel machining still represents a significant market share.

The use of the tough milling grade WK40TP with multi-layer TiAlN and ZrN coatings ensures that these milling cutters provide exceptional performance when machining ISO P materials. In addition, these cutters are available with a reduced neck to enable reliable shoulder milling with an extremely high metal removal rate.

The MD340 Supreme has a diameter range from 1/16-3/4 in. or 2-25 mm and is specifically designed for roughing, full slotting and dynamic milling. The wide variety of products with three, four or five teeth makes the cutter extremely productive for universal application.

The MD344 Supreme is a four-flute mill with a special face geometry for optimal 90° plunging and steep ramping angles, setting new standards when it comes to plunging and pocket and cavity milling in a single operation. The diameter range is from 6-20 mm.  The multiple operations that are performed by the MD344 Supreme can shorten machining time due to fewer tool changes, reduce  the required tool spaces in the machine and reconditioning costs are also reduced because no additional boring tools are required.

The MD344 Supreme and the MD340 Supreme three-flute versions both feature a 38° helix, while the MD340 Supreme four-flute has a 39°/41° variable helix, the MD340 five-flute version features a differential or unequal pitch.

The variable helix, differential pitch versions are each perfectly coordinated, and adapted to the number of teeth, to ensure exceptional performance and operational smoothness, which in turn also improves the quality of the surface finish and maximizes tool life.

The Walter lineup of products consists of three categories to tools. Supreme tools indicate the highest level of technology and performance available. Advance tools indicate product efficiently balanced between price and performance and Perform tools are products that provide an economical solution with focused importance on price ideal for small batch volume jobs.

Related Glossary Terms

  • boring

    boring

    Enlarging a hole that already has been drilled or cored. Generally, it is an operation of truing the previously drilled hole with a single-point, lathe-type tool. Boring is essentially internal turning, in that usually a single-point cutting tool forms the internal shape. Some tools are available with two cutting edges to balance cutting forces.

  • gang cutting ( milling)

    gang cutting ( milling)

    Machining with several cutters mounted on a single arbor, generally for simultaneous cutting.

  • milling

    milling

    Machining operation in which metal or other material is removed by applying power to a rotating cutter. In vertical milling, the cutting tool is mounted vertically on the spindle. In horizontal milling, the cutting tool is mounted horizontally, either directly on the spindle or on an arbor. Horizontal milling is further broken down into conventional milling, where the cutter rotates opposite the direction of feed, or “up” into the workpiece; and climb milling, where the cutter rotates in the direction of feed, or “down” into the workpiece. Milling operations include plane or surface milling, endmilling, facemilling, angle milling, form milling and profiling.

  • milling machine ( mill)

    milling machine ( mill)

    Runs endmills and arbor-mounted milling cutters. Features include a head with a spindle that drives the cutters; a column, knee and table that provide motion in the three Cartesian axes; and a base that supports the components and houses the cutting-fluid pump and reservoir. The work is mounted on the table and fed into the rotating cutter or endmill to accomplish the milling steps; vertical milling machines also feed endmills into the work by means of a spindle-mounted quill. Models range from small manual machines to big bed-type and duplex mills. All take one of three basic forms: vertical, horizontal or convertible horizontal/vertical. Vertical machines may be knee-type (the table is mounted on a knee that can be elevated) or bed-type (the table is securely supported and only moves horizontally). In general, horizontal machines are bigger and more powerful, while vertical machines are lighter but more versatile and easier to set up and operate.

  • pitch

    pitch

    1. On a saw blade, the number of teeth per inch. 2. In threading, the number of threads per inch.

  • slotting

    slotting

    Machining, normally milling, that creates slots, grooves and similar recesses in workpieces, including T-slots and dovetails.

  • titanium aluminum nitride ( TiAlN)

    titanium aluminum nitride ( TiAlN)

    Often used as a tool coating. AlTiN indicates the aluminum content is greater than the titanium. See coated tools.

Additional Products from Walter USA LLC

The GD8 geometry has been specifically developed for grooving along the shoulders and grooving of large diameters without interference of the insert with the finished workpiece. The VG8 geometry has been developed for finishing operations behind a collar.

The G4014-P groove turning holder makes it possible to change inserts in the machine – even where space is limited—in particular on long center lathes and multi-spindle machines. As a result, changing inserts is approximately 70% faster.

Walter has launched the new Xtra·tec XT M5008, an indexable high-feed milling cutter in the diameter range of 5/8–2½ in. (16–66 mm) that permits high feed per tooth at low axial depths of cut. Application areas range from pocketing, grooving and surface machining.

Walter has introduced the MU5 double-sided indexable insert for turning operations. The insert can be used universally both for steel forged parts and also for stainless materials.

Walter has introduced the TC410 Advance HSS-E thread former, a versatile new TiN-coated threading tool that’s cost-effective even for small and medium batch sizes. It can be used universally for blind-hole and through-hole threads in most materials having a primary application in ISO material…

Walter has added Walter Capto toolholders and insert widths to its Walter Cut MX grooving system. Capto toolholders feature enhanced rigidity and modularity, while the tapered polygonal shape handles both torsional and bending forces with ease. This interface can be used for lathes and turn/mill…

Walter has introduced the MC232 Perform line of solid-carbide milling cutters. These milling cutters, the latest addition to Walter’s cost-effective Perform product range, feature a corner radius and reduced neck. Solid-carbide milling cutters with corner radii allow improved approaches to…

Walter has introduced the T2713, a universal indexable thread mill suitable for a variety of materials up to 55 HRC. This newest addition to the Walter thread milling system combines the advantages of thread milling with the efficiency of tapping. Due to the smooth cutting and lower cutting forces…

Walter has added PCD grooving inserts to its Walter Cut GX grooving system, the innovative tool technology for grooving and parting off. These new geometries, straight edge (F1) and full radius (M1) excel at grooving in aluminum and titanium alloys, bringing high cutting speed, longer tool life and…

Walter has introduced single-sided indexable inserts with new HU5 geometry. These HU5 inserts can dramatically boost productivity particularly in rough machining of stainless steels and heat-resistant superalloys and secondarily in steel. They are typically used in machining AISI 316 material,…

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