Construction on Chatham Wolfspeed plant humming along as final steel beam

The RF100 Sharp Series has an extremely smooth cutting action and high chip removal capability. This, and its ability to be used in a wide variety of applications such as slotting, ramping, roughing, helical milling, finishing and trochoidal cutting, make the new RF100 Sharp and end mill of choice when flexibility is required.

ANSI B212.4-2002 standard added one more capital letter O, which denotes other relief angles for new designs of indexable inserts.

Space provided behind the cutting edges to prevent rubbing. Sometimes called primary relief. Secondary relief provides additional space behind primary relief. Relief on end teeth is axial relief; relief on side teeth is peripheral relief.

It is a two-digit number carried to one decimal place when it is not a whole number: 1.2 – 5 ⁄ 64"; 1.5 – 3 ⁄ 32"; 2.5 – 5 ⁄ 32"; 3.5 – 7 ⁄ 32".

The new RT100 InoxPro overcomes these challenges with its new geometry that optimises chip formation. This combined with an ultra-smooth Perrox coating enhances wear protection and an optimised carbide substrate that delivers the perfect balance of hardness and toughness.

The latest Iscar LogiQuick campaign has unveiled a diverse range of new cutting tools, effectively replenishing the company's portfolio.

MSC Industrial Supply Co. UK (MSC) is celebrating a successful season after sponsoring two local youth football teams during the 2023/2024 campaign.

Especially suited for pocketing and wall applications with thin wall sections with depths up to 3 x D, the new Alu RF100 SkyLiner F delivers excellent surface finishes even at the highest feed rates.

On rectangular and parallelogram inserts, the width and length dimensions are used in place of the I.C. A two-digit number designates the sizes of these inserts. The first digit indicates the number of eighths of an inch in the width and the second digit indicates the number of fourths of an inch in the length of the insert.

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.

American National Standard ANSI B212.4-2002 covers the identification system for indexable-type inserts for both single-point and multiple-point cutting tools. It was published on October 29, 2002. The earlier editions of the standard are:

Any machining process used to part metal or other material or give a workpiece a new configuration. Conventionally applies to machining operations in which a cutting tool mechanically removes material in the form of chips; applies to any process in which metal or material is removed to create new shapes. See metalforming.

As part of the stand at MACH, Guhring will also be demonstrating its extensive PCD cutting tool portfolio.

Edmund Isakov, Ph.D., is a consultant, writer and frequent CTE contributor. He is the author of the books “Mechanical Properties of Work Materials” (Modern Machine Shop Publications, 2000); “Engineering Formulas for Metalcutting” (Industrial Press, 2004); “Cutting Data for Turning of Steel” (Industrial Press, 2009); the CD-ROM “International System of Units (SI)” (Industrial Press, 2012); and the software “Advanced Metalcutting Calculators” (Industrial Press, 2005). For more information, call (561) 369-4063 or visit www.edmundisakovphd.com.

As well as demonstrating all the latest ranges, Guhring engineers will be on hand at MACH to discuss the scope of special tooling solutions that can be designed, developed, manufactured and trialled at its facility in Birmingham. Guhring UK has a team of expert engineers that can create productivity, cost, inventory and cycle time savings for UK manufacturers.

Imaginary circle that touches all sides of an insert. Used to establish size. Measurements are in fractions of an inch and describe the diameter of the circle.

Guhring UK will premiere a host of cutting tool innovations at MACH 2024. With new product lines alongside proven ranges there will be a complete range of milling, threading, and drilling solutions on show.

For all other polygons, dimension B is the distance, measured along the bisector of the rounded off corner angle and a gage roll of nominal I.C. size tangent to the two sides opposite the corner (Figure 2). For example, if a tolerance letter is H, tolerances on dimensions (± from nominal) are: 0.0005" on dimension A, 0.0005" on dimension B and 0.001" on dimension T.

For the micro-machining sector, Guhring will showcase the RF100 Micro Diver. The micro-precision milling range is a universal tool for every material and application. Providing plunging and milling in a single tool, the RF100 Micro Diver is available in two variants, the 6808 and 6809. An innovative flute form further enhances rigidity and eliminates vibration. The series is suitable for cutting materials up to 48 HRC at depths up to 5 x D and is available with a cutting diameter from 0.79mm to 3.175mm.

Inserts selection depends on workpiece material, chip control, surface finish, tool life, and the machine tool’s power and torque requirements. One of the commonly used indexable inserts for general turning is CNMG 432.

The seventh position indicates the cutting point configuration: a radius or a facet. In the case of a radius, the number indicates how many of 1 ⁄ 64 of an inch in the radius: 0 – sharp corner (0.002" max. radius); 0.2 – 0.004"; 0.5 – 0.008"; 1 – 1 ⁄ 64"; 2 – 1 ⁄ 32"; 3 – 3 ⁄ 64"; 4 – 1 ⁄ 16"; 5 – 5 ⁄ 64"; 6 – 3 ⁄ 32"; 7 – 7 ⁄ 64"; 8 – 1 ⁄ 8"; 10 – 5 ⁄ 32"; 12 – 3 ⁄ 16" 14 – 7 ⁄ 32" = 14; 16 – 1 ⁄ 4"; X – Any other corner radius.

The fifth position is a significant one- or two-digit number indicating the size of the inscribed circle (I.C.) for all inserts having a true I.C. such as Round, Square, Triangle, Trigon, Pentagon, Hexagon, Octagon, and Diamond. This position designates the number of eighths of an inch in the nominal size of the I.C. It will be a one-digit number when the number of eighths of an inch in the I.C. is a whole number: 1 – 1 ⁄ 8"; 2 – 1 ⁄ 4"; 3 – 3 ⁄ 8"; 4 – 1 ⁄ 2"; 5 – 5 ⁄ 8"; 6 – 3 ⁄ 4"; 7 – 7 ⁄ 8";

There are 16 standard shapes of indexable inserts, and each shape is identified by a capital letter as follows (Figure 1):

The HyproJET X6 from Ceratizit is based on an improved and patented design which makes is possible to increase cutting performance, leading and lifetime.

The Starrag-Tornos Group recently welcomed guests to its 25th annual ‘Aerospace and Turbine Technology Days’ event hosted by Starrag in Switzerland.

The fourth position is a capital letter denoting differences in design of insert, such as the existence of fixing holes, countersinks and special features on rake surfaces. There are 15 standard types in design as follows (Figure 3):

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

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.

The sixth position is a significant one- or two-digit number indicating the number of sixteenths of an inch in the thickness of the insert. It is a one-digit number when the number of sixteenths of an inch in the thickness is a whole number: 1 – 1 ⁄ 16"; 2 – 1 ⁄ 8"; 3 – 3 ⁄ 16"; 4 – 1 ⁄ 4"; 5 – 5 ⁄ 16"; 6 – 3 ⁄ 8"; 7 – 7 ⁄ 16"; 8 – 1 ⁄ 2"; 9 – 9 ⁄ 16"; 10 – 5 ⁄ 8".

The latest Iscar LogiQuick campaign has unveiled a diverse range of new cutting tools, effectively replenishing the company's portfolio.

Notably, Guhring will give a MACH show premiere to the new RT100 InoxPro range of high-performance solid carbide drills for machining stainless steel and titanium alloys. When machining these challenging materials, tool wear can be a formidable opponent to productivity and performance.

Properties of a material that reveal its elastic and inelastic behavior when force is applied, thereby indicating its suitability for mechanical applications; for example, modulus of elasticity, tensile strength, elongation, hardness and fatigue limit.

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.

About the Authors: Edmund Isakov, Ph.D., is a consultant, writer, and frequent CTE contributor. He is the author of four books “Mechanical Properties of Work Materials” (Modern Machine Shop Publications, 2000); “Engineering Formulas for Metalcutting” (Industrial Press, 2004); “Cutting Data for Turning of Steel” (Industrial Press, 2009); “International System of Units (SI)” the CD-ROM (Industrial Press, 2013); and the software “Advanced Metalcutting Calculators” (Industrial Press, 2005). For more information, call (561) 369-4063, or email: edmundisakov9701@comcast.net. Shi ‘Steve’ Chen is Manager Product Engineering Turning at Kennametal Inc. For more information, call (724) 539-5321, or email: Shi.Chen@Kennametal.com

The 10th position is only used if there are letters in the seventh position. It will be a significant number representing the nominal sixty-fourths of an inch in length of the primary facet: 1 – 1 ⁄ 64"; 2 – 1 ⁄ 32"; 3 – 3 ⁄ 64"; 4 – 1 ⁄ 16"; 5 – 5 ⁄ 64"; 6 – 3 ⁄ 32"; 7 – 7 ⁄ 64"; 8 – 1 ⁄ 8"; 9 – 9 ⁄ 64"; 10 – 5 ⁄ 32".

This three-flute tool is offered in diameters from 6 to 20mm with axial through coolant ducts, a 0.2mm corner radius and a variable helix that makes the range perfect for finish milling. Accompanying the Alu RF100 Skyliner F at MACH will be the Alu RF100 SkyLiner R for rough machining. Guhring says this series is the perfect solution for high-performance machining in aluminium.

Available with 3 x D, 5 x D and 7 x D variants from 3 to 20mm diameter with 0.1mm increments, Guhring says this through coolant series will improve feed rates and tool life by more than 50% while improving process control and chip evacuation. The company will also present its Micro Precision Drills, the RT100T and RT100XF as well as firm favourites like the HR500 reaming line and SpyroTec spiral fluted chamfer milling cutters.

MSC Industrial Supply Co. UK (MSC) is celebrating a successful season after sponsoring two local youth football teams during the 2023/2024 campaign.

It will be a two-digit number carried to one decimal place when it is not a whole number: 1.2 – 5 ⁄ 32"; 1.5 – 3 ⁄ 16"; 1.8 – 7 ⁄ 32"; 2.5 – 5 ⁄ 16".

Replaceable tool that clamps into a tool body, drill, mill or other cutter body designed to accommodate inserts. Most inserts are made of cemented carbide. Often they are coated with a hard material. Other insert materials are ceramic, cermet, polycrystalline cubic boron nitride and polycrystalline diamond. The insert is used until dull, then indexed, or turned, to expose a fresh cutting edge. When the entire insert is dull, it is usually discarded. Some inserts can be resharpened.

When EuroBLECH, the industry’s flagship trade fair, opens its doors in Hannover from October 22-25, visitors will be able to experience the innovative solutions and full-range strategies that Amada offers its partners.

Alongside these MACH debutants, Guhring will introduce a multitude of favourites such as the RF100 Sharp, the ever-growing Diver Series of end mills and the RF100 Speed. The RF100 Sharp high-performance end mills made a MACH debut appearance in 2022 and will return in 2024 with an extended range to demonstrate how to address the issue of machining soft, tough and high-alloyed materials that create swarf evacuation issues.

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The HyproJET X6 from Ceratizit is based on an improved and patented design which makes is possible to increase cutting performance, leading and lifetime.

Guhring UK will premiere a host of cutting tool innovations at MACH 2024. With new product lines alongside proven ranges there will be a complete range of milling, threading, and drilling solutions on show. Notably, Guhring will give a MACH show premiere to the new RT100 InoxPro range of high-performance solid carbide drills for machining stainless steel and titanium alloys. When machining these challenging materials, tool wear can be a formidable opponent to productivity and performance. The new RT100 InoxPro overcomes these challenges with its new geometry that optimises chip formation. This combined with an ultra-smooth Perrox coating enhances wear protection and an optimised carbide substrate that delivers the perfect balance of hardness and toughness. Available with 3 x D, 5 x D and 7 x D variants from 3 to 20mm diameter with 0.1mm increments, Guhring says this through coolant series will improve feed rates and tool life by more than 50% while improving process control and chip evacuation. The company will also present its Micro Precision Drills, the RT100T and RT100XF as well as firm favourites like the HR500 reaming line and SpyroTec spiral fluted chamfer milling cutters. The milling portfolio from Guhring continues to expand rapidly. Since MACH 2022, the Birmingham manufacturer has added a wealth of innovations including the new SkyLiner series of end mills for rough and finish machining of aluminium and non-ferrous materials. Especially suited for pocketing and wall applications with thin wall sections with depths up to 3 x D, the new Alu RF100 SkyLiner F delivers excellent surface finishes even at the highest feed rates. This three-flute tool is offered in diameters from 6 to 20mm with axial through coolant ducts, a 0.2mm corner radius and a variable helix that makes the range perfect for finish milling. Accompanying the Alu RF100 Skyliner F at MACH will be the Alu RF100 SkyLiner R for rough machining. Guhring says this series is the perfect solution for high-performance machining in aluminium. The RF100 Sharp is designed to deal with swarf issues when machining soft, tough and high-alloyed materials Alongside these MACH debutants, Guhring will introduce a multitude of favourites such as the RF100 Sharp, the ever-growing Diver Series of end mills and the RF100 Speed. The RF100 Sharp high-performance end mills made a MACH debut appearance in 2022 and will return in 2024 with an extended range to demonstrate how to address the issue of machining soft, tough and high-alloyed materials that create swarf evacuation issues. The RF100 Sharp Series has an extremely smooth cutting action and high chip removal capability. This, and its ability to be used in a wide variety of applications such as slotting, ramping, roughing, helical milling, finishing and trochoidal cutting, make the new RF100 Sharp and end mill of choice when flexibility is required. For the micro-machining sector, Guhring will showcase the RF100 Micro Diver. The micro-precision milling range is a universal tool for every material and application. Providing plunging and milling in a single tool, the RF100 Micro Diver is available in two variants, the 6808 and 6809. An innovative flute form further enhances rigidity and eliminates vibration. The series is suitable for cutting materials up to 48 HRC at depths up to 5 x D and is available with a cutting diameter from 0.79mm to 3.175mm. As well as demonstrating all the latest ranges, Guhring engineers will be on hand at MACH to discuss the scope of special tooling solutions that can be designed, developed, manufactured and trialled at its facility in Birmingham. Guhring UK has a team of expert engineers that can create productivity, cost, inventory and cycle time savings for UK manufacturers. As part of the stand at MACH, Guhring will also be demonstrating its extensive PCD cutting tool portfolio. Guhring UKwww.guhring.co.ukHall 19, Stand 331

According to ANSI B212.4-2002 standard, identification of the indexable insert includes 10 positions denoted by a capital letter. Each position (from 1 to 10) defines a characteristic of the insert in the following order:

The milling portfolio from Guhring continues to expand rapidly. Since MACH 2022, the Birmingham manufacturer has added a wealth of innovations including the new SkyLiner series of end mills for rough and finish machining of aluminium and non-ferrous materials.

There are 14 tolerance classes that control the indexability of the inserts. Each class is denoted by a capital letter. Letters for tolerances are A, B, C, D, E, F, G, H, J, K, L, M, U and N.

In case of a facet, two letters are used. The first letter designates the facet angle: A – 45°; D – 60°; E – 75°; G – 87°; P – 90°; Z – Any other facet angle. The second letter designates the facet clearance angle:

As the Advanced Engineering show approaches, the excitement builds with fresh announcements of cutting-edge technologies and products to be showcased at the upcoming event at the NEC in Birmingham on October 30 and 31, 2024. As a result, this year’s exhibition is shaping up to be a must-attend for engineering and manufacturing professionals, offeri...

Space provided behind a tool’s land or relief to prevent rubbing and subsequent premature deterioration of the tool. See land; relief.

Conditioning of the cutting edge, such as a honing or chamfering, to make it stronger and less susceptible to chipping. A chamfer is a bevel on the tool’s cutting edge; the angle is measured from the cutting face downward and generally varies from 25° to 45°. Honing is the process of rounding or blunting the cutting edge with abrasives, either manually or mechanically.

Nine relief angle values have been described in ANSI B212.12-1991 standard. These angles are the difference from 90° measured in a plane normal to the cutting edge generated by the angle between the flank and top surface of the insert. Each relief angle is denoted by a capital letter as follows:

Due to the magazine’s space limitations, the authors provide the following tables showing most popular Kennametal’s indexable inserts only for general turning of steel, cast iron, and nonferrous alloys. These tables don’t cover all Kennametal chip breakers. (Figure 4 and Figure 5 also show Kennametal Inc. insert identification system and chip breaker identification system respectively.)

The mathematical expression denoting one of several parameters that describe surface texture (same as average roughness Ra). Average roughness is the arithmetic average height deviation of the measured surface profile from the profile centerline. See surface texture.

Tolerances on dimensions (± from nominal) are denoted by letters A, B and T. Dimension A is the nominal inscribed circle (I.C.) of the insert. Dimension T is the thickness of the insert. For pentagon, triangle and trigon shapes, dimension B is the insert height, i.e., the distance between one side and the opposite corner (Figure 2).