MSC Industrial Supply Co. is significantly expanding its Hertel line of metalworking products. This expanded offering features a wide range of new tools, including material-specific turning insert grades, spotting drills, combined drill and countersink tools as well as additional solid carbide roughing end mills. In addition to these enhancements, a threading solution has been added to the company's proprietary cutoff and grooving system to help drive greater efficiencies.

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.

Tool that cuts a sloped depression at the top of a hole to permit a screw head or other object to rest flush with the surface of the workpiece.

• More than 250 new Hertel spotting drills and combined drill and countersink tools join the hole-making tool line. With 60ÌÜÅÁ, 90ÌÜÅÁ and 120ÌÜÅÁ point geometries, the HSS and cobalt tools can meet a wide range of application requirements.

"We are constantly looking for opportunities to bring new solutions to market that will not only meet our customers' needs, but help them optimize their businesses," said Brian McGrath, MSC's Senior Product Manager for Hertel. "We recognized the need for more enhanced lines of Hertel tooling in response to our customers evolving needs. Hertel is synonymous with performance, increased productivity, cost control and profitability, and it was our goal to give them more selection to achieve their business goals."

“The inserts, which are easy to handle and adjust, offer reduced cost per part along with high accuracy and repeatability,” adds Jacques Gasthuys, global automotive application engineer.

• A threading solution adds to MSC's cut-off and grooving system, increasing its flexibility and effectiveness. The system incorporates various combinations of inserts, blades and monoblock tool holders that enable tooling to be exactly tailored to specific production needs. Customers can select from material-specific grades to drive the most productivity in various work piece materials.

Hertel has historically offered a full line of general turning inserts in common geometries, sizes and multiple grades. Its portfolio includes high-speed steel, cobalt and carbide drills in a variety of lengths, such as jobber, screw machine and taper. Threading products are available in general purpose hand, spiral point and spiral fluted taps with taper, plug or bottoming chamfers. Hertel offers a full line of general purpose end mills, including roughing, ball nose, square end, 2-flute, 3-flute, multi-flute and double-ended products.

Distance between the bottom of the cut and the uncut surface of the workpiece, measured in a direction at right angles to the machined surface of the workpiece.

Available in two major types: tungsten high-speed steels (designated by letter T having tungsten as the principal alloying element) and molybdenum high-speed steels (designated by letter M having molybdenum as the principal alloying element). The type T high-speed steels containing cobalt have higher wear resistance and greater red (hot) hardness, withstanding cutting temperature up to 1,100º F (590º C). The type T steels are used to fabricate metalcutting tools (milling cutters, drills, reamers and taps), woodworking tools, various types of punches and dies, ball and roller bearings. The type M steels are used for cutting tools and various types of dies.

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“To enhance efficiency, our new M5Q90 tangential milling cutter features fully engineered cutter bodies matched with dedicated PCD insert geometries that feature a positive cutting angle to reduce cutting force and load on the machined component,” explains Emmanuel David, global automotive product manager at Sandvik Coromant.

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.

M5Q90 cutter bodies are designed according to customer specifications, and therefore meet the requirements of high-productivity machining – the tool can operate in high-speed conditions in excess of 20,000 rpm. However, all cutter bodies offer the same design of tip seat, coolant channel, lead angle and rake angle. Inserts are always kept in stock.

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.

Cutting tool material consisting of natural or synthetic diamond crystals bonded together under high pressure at elevated temperatures. PCD is available as a tip brazed to a carbide insert carrier. Used for machining nonferrous alloys and nonmetallic materials at high cutting speeds.

Aluminum cylinder heads and engine blocks will be among the principal components to benefit, typically in automotive foundries or Tier 1/Tier 2 suppliers. By way of example, the cubing operation on a cast cylinder head would involve machining the camshaft face, inlet/outlet face and combustion face. Typical cutting data using M5Q90 might include a speed of 2,500 m/min. (8,202 sfm) and feed per teeth of 0.20 mm (0.008 inch). Users also benefit from high-precision coolant channels that provide the option for either emulsion or MQL application.

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Engagement of a tool’s cutting edge with a workpiece generates a cutting force. Such a cutting force combines tangential, feed and radial forces, which can be measured by a dynamometer. Of the three cutting force components, tangential force is the greatest. Tangential force generates torque and accounts for more than 95 percent of the machining power. See dynamometer.

• HertelNotch is the new comprehensive grooving and threading platform which includes inserts, tool holders and spare parts, all designed to cover a wide range of materials.

If desired, the cutter body tool life can be further extended in engineered solutions with PCD inserts protected by rows of carbide inserts, a configuration that also serves to increase the depth of cut capability. While the basic tool with PCD inserts offers 2–4 mm (0.079–0.157 inch) depth of cut in full engagement, this can be boosted to in excess of 4 mm (0.157 inch) using the engineered solution with protective rows of carbide inserts.

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.

Angle of inclination between the face of the cutting tool and the workpiece. If the face of the tool lies in a plane through the axis of the workpiece, the tool is said to have a neutral, or zero, rake. If the inclination of the tool face makes the cutting edge more acute than when the rake angle is zero, the rake is positive. If the inclination of the tool face makes the cutting edge less acute or more blunt than when the rake angle is zero, the rake is negative.

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.

Capable of both face and shoulder milling, the M5Q90 is also suitable for many applications in the general engineering and aerospace sectors.

Angle between the side-cutting edge and the projected side of the tool shank or holder, which leads the cutting tool into the workpiece.

The M5Q90 completes the Sandvik Coromant offer for machining aluminum automotive parts, complementing the M5B90, M5C90, M5F90, CoroMill Century/590 and M5R90 tooling solutions.

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.

Process of both external (e.g., thread milling) and internal (e.g., tapping, thread milling) cutting, turning and rolling of threads into particular material. Standardized specifications are available to determine the desired results of the threading process. Numerous thread-series designations are written for specific applications. Threading often is performed on a lathe. Specifications such as thread height are critical in determining the strength of the threads. The material used is taken into consideration in determining the expected results of any particular application for that threaded piece. In external threading, a calculated depth is required as well as a particular angle to the cut. To perform internal threading, the exact diameter to bore the hole is critical before threading. The threads are distinguished from one another by the amount of tolerance and/or allowance that is specified. See turning.

Workpiece is held in a chuck, mounted on a face plate or secured between centers and rotated while a cutting tool, normally a single-point tool, is fed into it along its periphery or across its end or face. Takes the form of straight turning (cutting along the periphery of the workpiece); taper turning (creating a taper); step turning (turning different-size diameters on the same work); chamfering (beveling an edge or shoulder); facing (cutting on an end); turning threads (usually external but can be internal); roughing (high-volume metal removal); and finishing (final light cuts). Performed on lathes, turning centers, chucking machines, automatic screw machines and similar machines.

To boost the first-stage roughing operation on newly cast aluminum parts for the automotive industry, cutting tool and tooling systems specialist Sandvik Coromant is introducing its M5Q90 tangential milling cutter. Designed to complete "cubing" (first machining of faces after casting) in a single operation without creating burrs, the new tool is fitted with PCD tangential inserts that provide a smooth and stable cutting action to lower power consumption and eliminate vibration. This concept ensures reliable performance, improved tool life, exceptional surface finish, high metal-removal rate and an increased number of parts per insert.

Any manufacturing process in which metal is processed or machined such that the workpiece is given a new shape. Broadly defined, the term includes processes such as design and layout, heat-treating, material handling and inspection.

• Hertel turning insert products, including HC115T turning grade for steel, HP410T/HT410T grades for nonferrous materials, and HP510T grade for high temperature alloys. The new grades are available in a comprehensive selection of insert shapes and chip control geometries for fine finishing, medium, and roughing applications. In addition we've also added our next generation of insert grades which include HC1250T, HP225T, HC405T and HC315T. These new grades and chip breaker geometries work across a wide variety of applications, including steel, stainless steels and cast iron.

Substances having metallic properties and being composed of two or more chemical elements of which at least one is a metal.

• Added versions of workhorse M42 cobalt roughing end mills include new sizes, coatings and fine and coarse roughing geometries.