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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

Heavy Machining Is What We Do

In the application area of heavy machining, Dormer Pramet supports high metal removal from large-scale forgings and castings, as well as welded and oxy acetylene-cut work pieces.

These operations require highly reliable cutting tools capable of working in very tough conditions. Through long-term cooperation with leading industries in many countries, Dormer Pramet has developed a wide assortment of products, all of which are featured in a dedicated brochure.

The Heavy Machining publication is available in print and as a downloadable pdf in English, German and Czech on www.dormerpramet.com

Dormer Pramet’s offer includes tools for heavy milling and turning applications, with typical customers including high-volume manufacturers, material suppliers and subcontractors supplying pre-machined blanks.

In heavy turning, the company has indexable inserts with cutting edge lengths from 25 – 50mm and tool holders with a range of approach angles to cover all common applications, conditions and variations in machine power. Depending on demands for productivity and machine rigidity, an assortment of positive or negative inserts and geometries are available.

For heavy milling, a range of cutters for face milling, 90° shoulder milling, helical milling, chamfer milling and special milling have been developed. The main priorities are high metal removal rates and reliability of cutting edge.

The Heavy Machining brochure also includes sections detailing tools for scarfing, special threading of pipes, chamfering and bar peeling applications.

Removing weld deposit is one of last operations during tube production and this process is called scarfing. The application requires very good surface quality and high productivity with minimum defects on the weld. Dormer Pramet offers a complete set of tool holders and a wide range of indexable inserts for external as well as internal operations.

In bar peeling applications, the most important criteria include high productivity, dimensional accuracy of machined bars and excellent surface quality. Dormer Pramet’s range of inserts feature specific geometries for steel, stainless steel and difficult to machine materials.

Also, a large line of threading tools for the tube industry is part of the assortment. These tools are designed for standard and special thread profiles. Precise indexable inserts are manufactured using specific technology to achieve unique cutting-edge quality and profile precision.

Slimslit – The Slimmest Indexable Cutter

ISCAR is introducing the narrowest indexable slitting tool in the market: indexable SGST disk slitting cutters featuring 0.8-1.2mm slitting widths and 32 – 63mm disk diameters with running capabilities of three times the speed and feed of HSS cutters.

The cutters are clamped on 16, 20 and 25mm diameter cylindrical shanks, featuring coolant channels with frontal radially oriented exits.

The tools carry new SLIM-GRIP GFT inserts featuring J-type chipformers made from IC1028 tough and IC1008 hard PVD coated grades to ensure high productivity.

For more information, please contact Iscar South Africa – Tel: 011 997-2700

Denel Appoints Wim De Klerk As Interim Group CFO

Denel has parted ways with its Group Chief Financial Officer, Mr Odwa Mhlwana, following a disciplinary process that dealt with various allegations relating to mismanagement.

This signifies one of the key steps that the Board of Denel has taken to stabilize the business and ensure effective oversight over the company since its appointment in April.

An external candidate Mr Willem Abraham De Klerk, otherwise known as “Wim” has been appointed as an interim Group Chief Financial Officer (GCFO). His appointment is with immediate effect and critical in strengthening the executive management capacity of the company. De Klerk is a certified Chartered Accountant with postgraduate Executive Programmes from Darden and Harvard. He joins Denel having recently vacated a Chief Executive Officer position at Arcellor Mittal SA.

De Klerk’s interim appointment, is intended to help build and strengthen a sound internal control environment to enable Denel to restore its position as a strategic national asset and a credible industry leader to key stakeholders.

Industrial Parks Can Be Turned Into Special Economic Zones

The Director-General of the Department of Trade and Industry, Mr Lionel October says with proper infrastructure, utilities and management, the twenty-six approved Industrial Parks across South Africa can in future, become Special Economic Zones (SEZ)s) that can contribute immensely to the economy of the country and create jobs. October was speaking at the opening of the two-day Industrial Parks Symposium hosted in Midrand, Gauteng.

The purpose of the symposium was to serve as a platform for engagement with key stakeholders and experts on the acceleration of the industrial parks as catalysts for developing the Rural and Township Industrial Economy.

According to October, with the support of the dti and the Department of Co-operative Governance and Traditional Affairs’ Municipal Infrastructure Grant, all the challenges that have been faced by the parks in the former homelands areas can be sorted out and made more productive, and attract other businesses to operate in them.

“When we talk about revitalizing the industrial parks, we are talking about having proper roads for transportation of goods, proper sub-stations to provide electricity, providing cheaper rentals and avoiding overcharging these businesses operating in the parks. If this is done properly this will lead to lowering the cost of doing business and making our manufacturing sector competitive and sustainable,” said October.

SA Government To Improve Investment Climate

The South African government is pulling out all the stops to improve the country’s investment climate with the aim of attracting more investments to achieve the target of $100 billion worth of investments set by President Cyril Ramaphosa. This was said by the Minister of Trade and industry, Dr Rob Davies.

He was speaking at a roundtable discussion hosted by the Southern African – German Chamber of Commerce and Industry in Johannesburg. The event was also attended by the President of Germany, Dr Frank-Walter Steinmeier,

“This event is happening in the early stages of what President Ramaphosa calls a new dawn. This new dawn is about setting our country up on a new trajectory where we are looking at raising the level of our investment by domestic and foreign companies by US$100 billion over five years. In order to achieve that it has been identified that we need to improve the investment environment of this country, hence the government is doing everything possible to improve the country’s investment climate and make it an attractive destination for investors,” said Davies.

He listed a number of interventions that the government has already implemented in order to make the country attractive as an investment destination. These include providing certainty to the mining industry through the mining charter and changes to the visa regulations.

“We have also worked energetically to try and facilitate improved service for foreign and domestic investors through our entity called Invest South Africa. It provides services from an expression of interest to post-investment support to assist investors to find their way through all of the country’s regulatory issues. We have recently added onto their suites of services that they assist investors in finding an appropriate black economic empowerment deal that will add to the wellbeing of the country by supporting black entrepreneurs and assist in broadening the country’s economic base,” added Davies.

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