“Modern multi-task machines are intended for the complete machining of components but typically have a slow tool changing time, often around 15-20 seconds,” says Håkan Ericksson, Product Manager General Turning at Sandvik Coromant.

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.

Six new multi-task tool holders are being introduced, which are mounted at a 45° angle for B-axis machining and can be used with either CoroTurn Prime A-type or B-type inserts. Options for multi-task machines include four tool holders (one-insert only) and two Twin tool holders (two inserts). The CoroTurn Prime Twin tool holder is available for use with Coromant Capto® C5 – C8 size.

Loosely, any milling tool. Horizontal cutters take the form of plain milling cutters, plain spiral-tooth cutters, helical cutters, side-milling cutters, staggered-tooth side-milling cutters, facemilling cutters, angular cutters, double-angle cutters, convex and concave form-milling cutters, straddle-sprocket cutters, spur-gear cutters, corner-rounding cutters and slitting saws. Vertical cutters use shank-mounted cutting tools, including endmills, T-slot cutters, Woodruff keyseat cutters and dovetail cutters; these may also be used on horizontal mills. See milling.

Additionally, all Beyond inserts are top- and bottom-ground after coating for a better seating surface in the toolholder, which improves security.

New Beyond KCPM20 inserts are available in a variety of Kennametal milling cutter styles, including:

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Although PrimeTurning is applicable to the entire general turning area, machine shops with large batch sizes (automotive) are set to benefit most, as will those machining large components (aerospace), where there is a need to reduce tool changes, set-up time and production stops.

Kennametal is introducing the new BeyondTM KCPM20 grade indexable milling insert, specially engineered for high-speed dry machining in light to medium milling of steel and stainless steel parts under stable conditions. KCPM20 is being recommended as an ideal optimization grade for stainless steel machining applications where coolant is not used and excellent wear resistance is required.

High-temperature (1,000° C or higher), atmosphere-controlled process in which a chemical reaction is induced for the purpose of depositing a coating 2µm to 12µm thick on a tool’s surface. See coated tools; PVD, physical vapor deposition.

Cutting tool and tooling system specialist Sandvik Coromant has unveiled a new range of CoroTurn® Prime multi-task and axial type tool holders to help machine shops implement the new PrimeTurning™ methodology, which enables turning in all directions. The introductions allow users to maximise the benefits of PrimeTurningon multi-task turn-mill centers and vertical turning lathes (VTLs). Complementing the company’s existing radial tool holders, Sandvik Coromant now has a complete offer for PrimeTurning operations.

Each specific Beyond grade from Kennametal is optimized with substrate characteristics and coating thickness specific to its application. The result is productivity improvement and an expanded range of application for each new product compared to the original grade.

Secures a cutting tool during a machining operation. Basic types include block, cartridge, chuck, collet, fixed, modular, quick-change and rotating.

All new Beyond inserts are CVD (chemical vapor deposition) coated, but whereas conventional CVD coatings are under tensile stress, Beyond inserts undergo a proprietary post-coat treatment on all surfaces to reduce this stress, which improves coating adhesion and reduces micro-chipping. More uniform and reliable wear of the cutting edge results in improved and more consistent tool life. Smoother surfaces also lower frictional forces, another factor that expands applications and permits higher cutting speeds.

Stainless steels possess high strength, heat resistance, excellent workability and erosion resistance. Four general classes have been developed to cover a range of mechanical and physical properties for particular applications. The four classes are: the austenitic types of the chromium-nickel-manganese 200 series and the chromium-nickel 300 series; the martensitic types of the chromium, hardenable 400 series; the chromium, nonhardenable 400-series ferritic types; and the precipitation-hardening type of chromium-nickel alloys with additional elements that are hardenable by solution treating and aging.

A range of axial tool holders for vertical turning lathes is also part of the range, which means that Sandvik Coromant now has a complete offer for PrimeTurning: Axial, radial and multi-task tool holders. In total, eight dedicated tool holders for axial mounting are being launched. This type of tool holder is compatible with most types of vertical lathes, and is available in Coromant Capto for use with either CoroTurn Prime A-type or B-type inserts.

Hein Nel appointed as new Sales Manager Sandvik Coromant have announced the appointment of Hein Nel as its new Sales Manager with immediate effect. Hein will be responsible for contributing to Sandvik Coromant’s overall strategy and increasing offerings to both existing and new customers. Hein will oversee marketing, strategic business partnerships and sales in South Africa and Sub-Sahara.

For further details contact Sandvik Coromant on TEL: 0860 101 008 or Mary-Ann Haylett on TEL: 011 570 9615, or email: mary-ann.haylett@sandvik.com or visit www.sandvik.coromant.com

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As a further advantage, B-axis machining on multi-task machines permits the operator to programme the angle of the tool in precise increments. When the machine cuts using its B-axis, a lot of accessibility is created using neutral holders. In combination with streamlined operations, this delivers the potential for huge time saving and productivity increases to help manufacturers reduce tooling inventories and achieve competitive gains.

Hein commented: “I look forward to expanding Sandvik Coromant’s business locally and look forward to helping customers on their digitalisation journey.”

Born in South Africa, Hein holds various industry and management qualifications and has more than 24 years’ experience in the manufacturing industry. He has previously had management roles in sales, design, production and training. His last role saw him responsible for various projects for the pump and valve industry, railway as well as the manufacturing of munitions.

One of the highlights of the range is the CoroTurn Prime Twin tool holder for multi-task machines. Both CoroTurn Prime A and B-type inserts can be mounted together on Twin tool holders, allowing manufacturers to undertake roughing with a B-type insert before switching to finishing with an A-type insert, for example.

“As a result, the new Twin holder will save customers a considerable amount of time when changing tools.”

"While optimized for steels and stainless steels, KCPM20 also can act as a troubleshooter in cast iron applications, particularly with nodular irons in dry conditions," says Osny Fabricio, Kennametal Senior Product Manager. "Use KCPM20 when existing applications need to be optimized to gain additional tool life and productivity via higher speeds and feeds."

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.

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.

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.

Ultimately, the all-directional PrimeTurning method and CoroTurn Prime tools will ensure that manufacturers can complete their turning operations in a much more efficient way. Compared with conventional turning, a 50-80% increase in productivity, along with 1.5 to 2 times more tool life, can be achieved.

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