Cemented carbide, coated carbide, cermet, ceramic and other hard material inserts have the cutting edge honed so as to prevent fracturing in the machining.

CoroMill 177 is a segment-built indexable hob with tangential inserts and a unique segment interface covering modules 10 to 18 (DP 2.540 to 1.411). The technology features a new polygon-shaped interface between the segments that ensures precision and high torque transfer capability, while the high accuracy and rigidity of the cutter body ensures both high quality in the components produced and exceptional productivity.

This is the symbol that represents the clearance angle of an insert. An insert with 0° clearance angle, which is shown by symbol N, is called a negative insert. An insert with a clearance angle other than 0° is called a positive insert. Many turning inserts have clearance angles shown by symbols P, C and N.

For the inch coding method, the diameter of an inscribed circle is shown by a numerical symbol. For example, an inscribed circle of  3/8 inch (9.525mm) is represented by the symbol 3. An inscribed circle of 4/8 inch (12.70mm) is shown as 4.

This is the symbol that represents the clearance angle of an insert. An insert with 0° clearance angle, which is shown by symbol N, is called a negative insert. An insert with a clearance angle other than 0° is called a positive insert. Many turning inserts have clearance angles shown by symbols P, C and N.

The symbol that represents the tolerance class is determined by a combination of three tolerances; the nose height (m), inscribed circle (d) and thickness (s). To produce close tolerance inserts, grinding is necessary.

Image

The CoroMill 172 disc cutting concept is available in module 3-10 (DP 8.467-2.540) with gear profiles in accordance with DIN 867 for gears and DIN 5480 for splines. Thanks to the new indexable carbide insert technology and powerful iLock interface, the component can be machined in flexible non-dedicated machines, such as multi-task machines and machining centres, as well as in hobbing machines. CoroMill 172 can hold a range of inserts, offering flexibility for customers producing gears, racks and splines of close module size and similar tooth profiles.

Chip breakers play an important role in chip control. Cutting tool manufacturers employ their own breaker geometries and as such the symbol is optional.

Nikki Stokes PR & Advertising, EMEA Sandvik Coromant Tel: +44 (0) 121 504 5422 Email:  nikki.stokes@sandvik.com Website:  www.sandvik.coromant.com

The insert geometry is represented using letters of the alphabet. A wide range of geometries are listed as standard for example; triangle, square, round, polygon and rhombus.

EMO2013 also provided an opportunity for visitors to find out about Sandvik Coromant InvoMilling, a unique approach to milling spur and helical gears using indexable insert cutters. InvoMilling opens up new, cost-efficient ways to produce geared components without dedicated hobbing machines. Complete components can be machined with just a single set up of one machine to reduce overall production times.

For turning operations, mainly G-class (sometimes J-class) or M-class inserts are used. Inserts with tolerance classes other than G, J and M are mostly used on face milling cutters.

However, for the metric coding, the diameter of an inscribed circle is represented by the cutting edge length using a two-digit number. Therefore, even if the inscribed circle is the same , the symbol for the cutting edge will vary.

Birgit Schoeniger  Senior Account Manager Pinnacle Marketing Communications, Ltd  Tel: +44 (0) 208 429 6554 Email:  b.schoeniger@pinnaclemarcom.com Website:  www.pinnacle-marketing.com

This symbol represents whether or not the insert has a chip breaker. It also refers to whether the insert has a hole or not. A negative insert can have one-sided or double-sided chip breaker.

The symbol that represents the tolerance class is determined by a combination of three tolerances; the nose height (m), inscribed circle (d) and thickness (s). To produce close tolerance inserts, grinding is necessary.

However, for the metric coding, the diameter of an inscribed circle is represented by the cutting edge length using a two-digit number. Therefore, even if the inscribed circle is the same, the symbol for the cutting edge will vary.

Cemented carbide, coated carbide, cermet, ceramic and other hard material inserts have the cutting edge honed so as to prevent fracturing in the machining.

The insert geometry is represented using letters of the alphabet. A wide range of geometries are listed as standard for example; triangle, square, round, polygon and rhombus.

This symbol represents the actual thickness of the insert. It works on the same principle as that of the inscribed circle.

This symbol represents the direction in which the insert can machine. If the insert can be used for both left and right (thus neutral) then the symbol is generally omitted.

CoroMill 176 is an indexable insert hob that can reduce cutting time by up to 70 percent, largely through the application of cutting speeds up to four times higher than conventional high speed steel (HSS) cutters and a large number of effective inserts. The cutter offers a full-effective design compared to the half-effective designs on multi-segment hobs with tangentially mounted inserts. Furthermore, tool life is up to six times longer, which means machine downtime is also reduced in direct proportion. The successful CoroMill® 176 range of full profile hobs for spur gears, helical gears and splines has recently been extended to incorporate module 3-10 applications. The CoroMill 176 is now also available in multi-start version.

Chip breakers play an important role in chip control. Cutting tool manufacturers employ their own breaker geometries and as such the symbol is optional.

Sandvik Coromant  is a global leading supplier of cutting tools, tooling solutions and know-how to the metalworking industry. With extensive investments in research and development we create unique innovations and set new productivity standards together with our customers. These include the world's major automotive, aerospace and energy industries. Sandvik Coromant has 8000 employees and is represented in 130 countries. We are part of the business area Sandvik Machining Solutions within the global industrial group  Sandvik .

There are a number of different types of honing, for example "round" honing and "chamfer" honing. The type of honing employed is shown by the appropriate symbol. Cutting tool manufacturers amploy their own honing geometries (size and angle) according to insert grade and size. Generally the honing symbol is omitted from an identification code.

Among the technologies shown at the Sandvik Coromant SmartHub were the CoroMill® 170 high performance cutter for large gears; the CoroMill 172 versatile and time-saving disc cutters for milling high-quality gear profiles; the CoroMill 176 indexable insert hob that reduces cutting time by up to 70 percent; and CoroMill 177 indexable hob, with a technology that ensures both precision and high torque transfer capability. The company also showcased innovative techniques for the milling of spur, helical and bevel gears.

This represents the corner radius (nose radius) of an insert. It is standardized in intervals, for example after 0.4mm with intervals of 0.4mm, and after 4.0mm in intervals of 0.8mm.

For the inch coding method, the diameter of an inscribed circle is shown by a numerical symbol. For example, an inscribed circle of  3/8 inch (9.525mm) is represented by the symbol 3. An inscribed circle of 4/8 inch (12.70mm) is shown as 4.

Image

This symbol represents whether or not the insert has a chip breaker. It also refers to whether the insert has a hole or not. A negative insert can have one-sided or double-sided chip breaker.

For turning operations, mainly G-class (sometimes J-class) or M-class inserts are used. Inserts with tolerance classes other than G, J and M are mostly used on face milling cutters.

This represents the corner radius (nose radius) of an insert. It is standardized in intervals, for example after 0.4mm with intervals of 0.4mm, and after 4.0mm in intervals of 0.8mm.

Finally, developed in collaboration with tool builder Heller and Voith Turbo, the uP-Gear Technology is offering a flexible, productive and cost-efficient solution for a wide range of bevel gear sizes.

At EMO 2013 cutting tool and tooling systems specialist Sandvik Coromant exhibited a wide variety of tools and solutions that can improve quality while reducing gear milling process time across a variety of applications.

This symbol represents the direction in which the insert can machine. If the insert can be used for both left and right (thus neutral) then the symbol is generally omitted.

Image

There are a number of different types of honing, for example "round" honing and "chamfer" honing. The type of honing employed is shown by the appropriate symbol. Cutting tool manufacturers amploy their own honing geometries (size and angle) according to insert grade and size. Generally the honing symbol is omitted from an identification code.

Delivering precision and reliability in roughing external and internal gears, CoroMill® 170 is a high performance cutter that can cut machining times for large gears in module range 12-22.

This symbol represents the actual thickness of the insert. It works on the same principle as that of the inscribed circle.