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Colchester Multiturn CNC Lathe

The new MultiTurn is a simple, flat-bed CNC lathe now incorporating the powerful and user-friendly Siemens 828D control with Shopturn as a standard feature, although Fanuc 0iTF with Manual Guide i can also be fitted should the customer specify it.

The MultiTurn takes a highly established, robustly engineered lathe concept from Colchester that makes it the perfect machine for many of today’s CNC turning applications. The MultiTurn is everything that you come to expect from a Colchester lathe – robust, stable and highly precise, irrespective of the component size handled.

The Siemens 828D control with Shopturn has a well-earned reputation for being highly user-friendly and intuitive, ensuring that operators can cut quickly and easily with very little training. However, the Shopturn system is also powerful enough for more advanced CNC users to output maximum productivity quickly.

The Colchester MultiTurn lathe has been designed specifically for CNC users looking for increased versatility on one-off and small batch production, first time CNC buyers and jobbing shops looking for real programming simplicity and education and training establishments needing a real lathe with step-by-step simplicity.

600 UK offer 6 Colchester MultiTurn models, starting with the compact MultiTurn 1000, which has a 330mm swing over bed, a 7.5kW motor, outputting spindle speeds of 3500 rpm, right through to the heavyweight MultiTurn 6000, which has a massive 760mm swing over bed and an 18.5kW motor giving spindle speeds of up to 1400 rpm.

The MultiTurn 6000 also has bed length options ranging from 1.5 to 6 metres, ensuring that the MultiTurn is capable of turning any component, regardless of size, right through to long shafts, billets, bar stock and castings.

For more information, please contact F&H Machine Tools – Tel: 011 386-5840.

Intelligent Machine Productivity In A Compact Footprint

The latest entry in Okuma’s 2SP-H Series of two-spindle CNC lathes is designed to provide consistent quality in mass production while increasing efficiency through process-intensive machining and automation.

The lathe enables stable unattended production over long runs via a high-speed loader feeding blanks. Due to the machine’s unique design, the loader is able to enter the 2SP- 2500H regardless of the turret’s position. Since turret retraction is not necessary, workpiece transport and changeover times are greatly reduced.

With 5,000min-1, the lathe’s turning spindle features the fastest spindle speed of its class. The 2SP-2500H offers unrivalled floor space utilization with the smallest-in-class machine width of 2,200mm. Despite its compact dimensions, the machine provides an impressive maximum turning diameter of 250mm.

The 2SP-2500H is 20% faster than previous models. With a maximum spindle speed of 6,000min-1 and a doubled max motor output of 7.1 kW, the machine’s milling capabilities are on par with that of a small machining centre. Other applications include powerful face milling, drilling and tapping.

Okuma’s Intelligent Technology application Thermo-Friendly Concept minimizes thermal deformation and enables supreme accuracy. Okuma’s Tool Life Forecaster predicts the remaining time before an exchange is required and prevents cutting edge breakage, thus reducing costs.

For more information, please contact F&H Machine Tools – Tel: 011 386-5840.

Innovating Production With A Large Smart Machine

A high output, high torque spindle enables heavy-duty cutting with turning capacity of 10mm2, while a first-in-this class, newly-developed milling turret achieves process-intensive machining of large parts in with powerful milling-tool spindles that have an axial milling capacity of 120 cm3/min. Four different main spindles are available to match the workpiece, from a bore diameter of 200mm and spindle speed of 1,500 min-1 to 560mm and 350 min-1, respectively, for the best machining with the best spindle. Innovative production is achieved with a rich array of applications, including simultaneous machining with upper and lower turrets, a long boring bar attached to the upper turret and a follower rest mounted on the lower turret.

The range of functions provided with Okuma’s next-generation CNC, the “OSP suite”, supports smart manufacturing with advanced Okuma Intelligent Technologies including the Thermo-Friendly Concept to maintain stable machining accuracies during long runs, Machining Navi for optimal cutting conditions required for turning, milling and threading and the Maintenance suite visual control tool for maintenance activities.

For more information, please contact F&H Machine Tools – Tel: 011 386-5840.

CTX Beta 1250 TC With Turn-Mill Spindle Compactmaster

The CTX beta 1250 TC is designed for universal application in turn/mill machining of workpieces up to ø 500 mm and 1,210 mm turning length, whereby the Y-axis stroke, which has been increased by 50 mm to 250 mm, increases flexibility during offcentre machining.

The feed rate which is increased by up to 65% to max. 50 m/min ensures high productivity already as standard. The robust direct linear measuring systems from MAGNESCALE ensure highest precision in all three linear axes. Furthermore, the optional linear drive generates even more speed, dynamics and precision. The direct drive accelerates the Z-axis with 1g to up to 60 m/min with highest long-term precision.

Another core element of the CTX beta 1250 TC is the fast B-axis in Direct Drive technology with a continuous swivel range of ±120°. However, the distinctive feature is the new turn/mill spindle compactMASTER. With a length of only 350 mm it generates a space gain of 170 mm, which has enabled machining of workpieces of up to 350 mm length with tools of up to 400 mm length. In the process itself, the new compactMASTER spindle with HSK-A63 interface (optional Capto C6) provides 12,000 rpm, a torque of 120 Nm as well as a performance of 22 kW. A 20,000 rpm high-speed version is also available as an option. Meanwhile, the generously dimensioned 70 mm diameter spindle bearing of the compactMASTER ensures stability and precision in interaction with the temperature-stabilising sleeve cooling.

The CTX beta 1250 is equipped with a disk magazine containing 24 pockets as standard. Optionally, a 48- and an 80-pocket chain magazine are available. The machine’s range of applications can thus be considerably increased, particularly for a range of components that are frequently changing – either due to the reduction in tooling times or due to the option of targeted usage of sister tools.

Taking account of increasing energy prices, the CTX beta 1250 TC is equipped with a large number of energy-saving features. A cooling unit with added water, an energy-efficient control cabinet cooling unit, synchronous motors for higher acceleration rates and reduced energy consumption, as well as hydraulic inverter units reduce energy consumption by more than 25%.

The CTX beta 1250 TC is equipped with the latest 3D control technology. The standard version comes with CELOS by DMG MORI with 21.5″ ERGOline control and SIEMENS. CELOS provides a uniform user interface for all new high-tech machines from DMG MORI. A unique 21.5″ multi-touch screen displays all CELOS APPs, which provide the user with integrated management, documentation and visualisation of order, process and machine data. Additionally, machine operation is simplified, standardised and automated. Optionally, the machine can be equipped with Operate 4.5 on SIEMENS 840D solutionline including 19“ ERGOline.

In both cases, the standard version of CTX beta 1250 TC already impresses with ShopTurn 3G for workshop-oriented programming. Complete flexibility between DIN and workshop-oriented programming is guaranteed by the DIN / ISO interface. A combination of ShopTurn cycles with DIN functions is also possible. Possible applications of the CTX beta 1250 TC are rounded off by exclusive technology cycles that are available as an option.

Based on a simple and dialog-supported input of the required parameters, the machining functions for off-centre turning and milling, for example, can be generated as well as special threads with the multi-thread cycle, and all this without a CAD/CAM system. Furthermore, a tool sorting cycle is available, which reduces idle times by sorting the tools in the chain magazine according to their call parameters. In total, based on the innovative technology cycles, up to 60% of programming time can be saved.

For more information, please contact Retecon – Tel: (011) 976-8600.

DMG Mori CTX Beta 800 TC

Thanks to the possibility of 5-axis machining, the CTX beta 800 TC closes the gap to the classical universal lathes as far as the high-performance area in the direction of maximum flexibility for chuck components, such as in mechanical engineering or in the fluid or hydraulics industry.

The CTX beta 800 TC.

Its automatic tool changer provides outstanding flexibility in classical turning operations involving workpieces up to Ø 500 x 800mm. The highlight of the CTX beta 800 TC is the turning-milling spindle. The Y stroke of 200mm and the new compactMASTER ultra-compact turning-milling spindle open up a wide range of applications to users of Turn & Mill complete machining to the extent of 5-axis simultaneous machining. The compact design of this spindle with integrated release cylinder for the tool clamp makes it possible to have torque of 120 Nm with an impressive length of just 350mm. In comparison with a conventional spindle the increase in work area is 170mm, with 20 percent more torque at the same time. The B-axis is also equipped with a direct drive, which makes highly dynamic machining possible with a swivel range of ±110° and rapid traverse speeds of 70 rpm.

For complex milling operations right through to 5-axis simultaneous machining, the HSK-A63 (optionally Capto C6) compactMASTER turning-milling spindle has performance data of 12,000 rpm, 120 Nm and 22 kW. A 20,000 rpm high-speed version is also available as an option. The DMG Mori high-tech modular building block system allows customers to equip the machine individually in line with their particular range of components. Among other things, this includes different tool magazines with a capacity of up to 80 pockets rather than the 24 as standard.

In the standard version the machine has a main spindle, designed with a liquid-cooled integral spindle motor (ISM76) with 380 Nm and 34 kW or optionally as ISM102 with 770 Nm and 38 kW and an NC-controlled tailstock. The machine can also be equipped with a counter-spindle instead of the tailstock for 6-sided complete machining. The ISM52 PLUS with 6000 rpm and 170 Nm is provided for this purpose. Chucks up to 400mm diameter can be used on the machine in conjunction with the ISM102 spindle motor. Steady rests, available for workpiece diameters of up to 200mm, are recommended for the machining of long workpieces.

The sturdy travelling column design stems from the larger CTX beta 1250 TC and has long since demonstrated its quality. Maximum stability and accuracy are achieved by means of combining with the direct measuring systems in all axes of the travelling column. The machine concept also has impressive ergonomics. Whereas the CTX beta 800 TC has a large work area, its advantages with regard to accessibility and space requirement are also remarkable. The 350mm distance from the front of the machine to the centre of the spindle is the ideal prerequisite for easy loading and unloading. The footprint is just 8.5 mÇ or 10.7 mÇ including chip conveyor.

The potential uses and target groups for the CTX beta 800 TC are manifold. The machine is mainly intended to appeal to the classical user of a universal lathe, which is much more flexible because of the integral tool changer, since there is no need for time-consuming re-tooling on the turret with up to 80 tools. Furthermore, thanks to the B-axis, only low-cost standard tools are required for machining at an angle. The machine has a stroke of ±100mm in the Y-direction, a facility which is not available on any universal lathe in this size category. Possible applications of the CTX beta 800 TC are rounded off by 11 exclusive technology cycles that are optionally available. Using these, up to 60 percent programming time can be achieved by means of extremely simple programming.

For more information, please contact Retecon – Tel: (011) 976-8600.

Rhinorush Eases Machining Operations

TaeguTec’s range of boring bars with screw clamping function is available to suit C, T, V and W shape RhinoRush inserts.

With the screw clamping type boring bar, the current hook lever, T-Holder and wedge clamp types, the RhinoRush line of boring bars meets the needs of more demanding machining applications.

The screw clamping type boring bar has a simple clamping structure, minimizes chip evacuation interference during internal machining and is stable plus durable during demanding operations.

Advantages of the ground type ML chip breaker include reduced cutting force due to its very sharp cutting edge and extended tool life with improved surface quality due to minimal built-up-edge during machining.

By combining the chip breaker’s sharp geometry and polished uncoated grade, this addition makes the RhinoRush line the perfect choice for aluminium and super alloy machining.

RhinoRush’s mini turning inserts are very popular across many sectors within the manufacturing arena as they reduce machining cost and increase output.

RhinoRush is characterized by a tough and smaller double-sided insert that enables improved machining time and better surface finish.

For more information, please contact TaeguTec – Tel: (011) 362-1500.

FS And MK Rhinorush Chip Breakers

The RhinoRush MK chip breaker is ideal for medium applications while machining stainless steel and heat resistant materials.

The MK chip breaker is a more stable insert that offers long tool life because of its sharp edge design that minimizes built-up-edges during machining operations.

Case studies prove the effectiveness of the MK chip breaker with tool life being increased by over 300 percent.

For example, during the product testing phase of a workpiece made from SUS 304, the MK chip breaker coated with TaeguTec’s TT9080 grade witnessed an increase of tool life by 343 percent during continuous cutting conditions with speeds of 160 meters per minute and same cutting conditions.

During another continuous cutting test, on difficult-to-cut Inconel 718, tool life was increased by 159 percent with all cutting parameters the same.

The RhinoRush FS chip breaker is specifically designed for excellent chip control on steel finish turning with superior evacuation under low feed and low depth of cut applications, while the insert’s sharp cutting edge drastically reduces machining load resulting in minimal vibration during operations.

For more information, please contact TaeguTec – Tel: (011) 362-1500.

Grooving Insert Range Extension Meets Demand For Machining Small Seal Fin Features In HRSA Materials

Sandvik Coromant is unveiling an extension to its popular CoroCut® 1-2 carbide and CBN-tipped grooving inserts designed specifically for seal fin machining in HRSA materials.

Originally available in 2mm (0.079 inch) widths, the company has responded to market demand by adding a 1.5mm (0.059 inch) insert that meets the challenges of producing small seal fins on aerospace engine disks and engine casings, giving customers the extra clearances required for robust machining.

Seal fins, which feature pockets and grooves with small radii, work as a gas seal between the rotating and stationary parts of a turbine. Each fin is machined in advanced HRSA materials, developed to withstand extreme temperatures and pressure differences.

CoroCut 1-2 grooving tools are robust, high-precision solutions that deliver consistent chip control and process security; critical aspects when producing these key features. The new 1.5mm (0.059 inch) CoroCut 1-2 insert width for machining smaller seal fin features is offered with -RO geometry in three grades, GC1105, GC1125 and S05F. The proven geometry and grades provide good chip formation and secure, reliable machining with excellent surface finish, while a patented CoroCut rail interface ensures mounting security.

“Each periphery-ground carbide insert provides high levels of edge sharpness and the ability to hold tight tolerances,” says Jenny Claus, Product Manager Parting and Grooving at Sandvik Coromant. “As a result, they allow the generation of even smaller radii profiles with the correct profile width.”

Importantly, profiling with a non-linear tool path (instead of plunging) using CoroCut 1-2 inserts will result in optimized chip control, even cutting wear and less component stress, which is critical for aerospace engine parts. Non-linear tool path profiling uses the whole front edge line of the insert and continuously changes the contact point between insert and material. The benefits are far reaching, and include improved productivity, process security and tool life, as well as a reduced number of passes. All of the newly introduced CoroCut 1-2 inserts are available as standard stocked items.

Also new are updated CoroTurn® SL70 cutting heads to suit both insert widths and complement the existing modular assortment. Designed to fit typical profiling and pocketing features in jet engines, gas turbine discs, rotors and shafts, configurable assemblies can be achieved with CoroTurn SL70 cutting heads and Coromant Capto® adaptors. Precision coolant is a standard feature.

Although optimized for HRSA materials, CoroCut 1-2 grooving tools can also be applied successfully to stainless steel and steel workpieces.

For more information, please contact Sandvik Coromant – Tel: 011 570-9615.

Widening The Options

Dormer Pramet has added new chip breakers to its turning ranges.

The negative NRM turning chip breaker is for roughing and semi-roughing of stainless steel and low alloy steel. Launched under the company’s Pramet brand, NRM is available for both double-sided and large single-sided inserts.

It has been designed for continuous and mass levels of production, offering consistent performance and high feeds. However, the NRM has excellent chip-breaking properties and can also be used for roughing of stainless steel even at lower feeds, without the risk of work hardening.

The negative NRM turning chip breaker is for roughing and semi roughing of stainless steel and low alloy steel.

Its positive geometry with a wide T-land offers a broad depth of cut and promotes good chip evacuation in a wide number of applications.The chip breaker is available in grades T7325, T7335 and T9315.

The NRM enhances Pramet’s existing range of turning chip breakers for stainless steel, including the NMR for medium to roughing operations, NM for medium turning and NF for finishing to medium turning.

In a recent test, machining M group material DIN 1.4301, the NRM on the CNMG insert with T7335 grade, achieved a 60% longer tool life than a competitor equivalent.

For more information, please contact Spectra Carbide Tooling Technology – Tel: 0860 23 23 23

Scarfing Products Achieving Global Success

Scarfing is a specific metallurgical technique using indexable cutting tools to clean excess weld, both internally and externally, in the tube production process.

Welded steel tubes are used in the construction sector for water and gas distribution, as well as in the automotive industry for use as exhaust pipes, for example. Most materials used for tube making are carbon steel, corrosionresistant steel and heat-resistant materials.

Dormer Pramet has developed a strong base of tools for scarfing and the assortment has gained success around the world including in Germany, Italy, India and North America.

Tomasz Cymorek, International Application Engineer – Metallurgy at Dormer Pramet, said: “Our key advantage is that we can offer a wide assortment of products with high reliability.

“This includes our T9335 grade, which has been designed for machining steel and stainless steel, even under very unfavourable machining conditions. It consists of stable and highly reliable substrates with abrasion resistant coatings, offering excellent tool life.”

Various types of inserts SNMX 251224-Rxx (11 types), SNMA 250924-Rxx (3 types), SNMX 15 (1 type), SNMX 19 (5 types) and types of rings PSR (6 types) are also included in the range.

All inserts and grades are detailed in the Scarfing catalogue, which is available to download at www.dormerpramet.com

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