Cutting Tools – Page 3 – NN Combined Engineering Agencies Pvt Ltd

JBO: GFM Shark Thread Milling Cutters

JBO GFM Shark Thread Milling Cutters - Rotary Transfer Machine

Tool Life Tripled!

The turned parts manufacturer Schauerte machines threads in high-alloy, corrosion-resistant Cr-Ni steel much more economically with GFM Shark thread milling cutters from Johs. Boss GmbH & Co. KG, brand JBO.

Wilhelm Schauerte GmbH & Co. KG in Lennestadt employs 140 skilled workers to manufacture turned parts for the automotive industry, general mechanical and apparatus engineering and sanitary engineering. Among other things, tapered Whitworth pipe threads Rp ½″ (14 threads per inch) have to be inserted into components made from the corrosion-resistant, high-alloy steel X2CrNiMo17-12-2 (material no. 1.4404) over a thread length of around 15 mm. Rotary transfer machines produce these components in large series. In the past, the contract manufacturers in Lennestadt used thread milling cutters from different tool manufacturers to mill the threads. However, the tool life and tool life proved to be insufficient. After just under 12,000 threads, the tools were worn out and had to be replaced. This caused frequent downtimes of the highly productive rotary transfer machines.

Optimized Cutting Geometry

The contract manufacturers in Lennestadt now machine much better and more economically with GFM Shark thread milling cutters (D16x41xG14 IK) from JBO (Johs. Boss GmbH & Co. KG). The tools are held in TENDO Turn hydraulic clamping systems (Schunk). The threads are cooled and lubricated with oil during milling.

The cutting edge geometries of the GFM Shark thread milling cutters are carefully matched to hard, corrosion-resistant steel alloys and now ensure significantly longer tool life. The thread milling cutters machine around 30,000 threads at a cutting speed of Vc=100 m/min and a feed per tooth of fz=0.08 mm up to the wear limit. This means that they achieve almost three times the tool life. On the other hand, they reduce the possible cycle time, as they work more productively than the previously used threading tools.

Multiple Use

A special feature of the thread milling cutters from JBO ensures that the tools also optimize efficiency when milling threads in components made from high-alloy steels. They have a total usable cutting edge length of 41 mm. This means that they are only partially stressed when milling threads over 15 mm in length. They can therefore be shortened (halved) by around 20 mm (once the wear limit has been reached on the utilized part of the cutting edges). With the remaining part of the usable cutting edges, they then machine a further 30,000 threads until the wear limit is reached. This means that the production technicians at contract manufacturer Schauerte can use GFM Shark thread milling cutters from JBO for a total of 60,000 and sometimes even up to 80,000 threads on their rotary transfer machines. As specialists at Schauerte confirm, this is done reliably and with process security. With these six times the tool life – compared to conventional thread milling cutters in the past – the GFM Shark thread milling cutters from JBO prove that they can produce much more economically with high process reliability. The contract manufacturer in Lennestadt can now reduce its demand and procurement for thread milling cutters to around a third or even a sixth of the quantities previously required.

Please contact us for more information on JBO GFM Thread Milling Cutters for your applications.

HORN: CBN Tooling for High Surface Quality

High Surface Quality at High Speed

Nickel-based alloys, titanium, cobalt-chrome: Reliable machining of these problematic materials requires a high level of expertise on the part of the user. If the workpieces also require high surface quality, the use of specialized tools is essential. HORN addresses this need with a CBN tool system that is unique on the market. Geometries specially developed for finishing ensure high surface quality, tight tolerances and high process reliability when machining the material groups P, K and S. Moreover, HORN is pushing the boundaries of machining speed with this system.

In operation, the tools achieve speeds of 350 m/min (1,148 ft/min) when cutting Inconel and 300 m/min (984 ft/min) when cutting titanium alloys, for example. The tools produce surfaces with an almost mirror-like finish. The combination of cutting material, quality of the tool edge grinding, coating and coolant supply enables the high performance. The reliable process is enhanced by the linear wear behavior of the CBN cutting material. Wear rate is therefore predictable. The finishing system is available as standard in numerous HORN tool systems. In addition to various ISO inserts, HORN offers CBN inserts for the Supermini, Mini, 229 and 315 systems, as well as for the DTS milling system.

Please contact us for more information on CBN Tool Systems from Horn!

HORN: New tools for Deep Axial Grooving

The new Mini 114 system from Horn enables a face grooving depth of up to 10 mm. The Tübingen-based tool manufacturer is thus further expanding the already wide variety of this product family. The insert is suitable for turning and copy turning of axial grooves. The user does not need a special tool holder, as the insert is compatible with the existing axial holder system. As standard, Horn offers the EG55 carbide grade grooving tools in three different types from stock with cutting widths of 2 mm, 2.5 mm and 3 mm. The minimum diameter for grooving is 14 mm, while the maximum is 34 mm to 36 mm, depending on the type.

The face-screwed inserts of the Mini system are one of Horn’s core products. The tool system is suitable for turning and milling applications. The precision tools have proven particularly effective for boring, internal grooving and face grooving. Paired with the low-vibration carbide tool holders, the inserts produce good surface finish even with long overhangs and ensure excellent process reliability. The Mini system’s broad portfolio offers inserts in various sizes for different internal diameters as well as different geometries and substrates and CBN or diamond tips.

Please contact us for more information for your requirements.

JBO: Solid Carbide Circular Drill Thread Milling Cutters BGFS

Core hole drilling + Thread machining + Countersinking with just one tool!
Introducing JBO Solid Carbide Circular Drill Thread Milling Cutters BGFS for hard machining and the machining of steels and non-ferrous metals.

Feature Summary

New geometry, new carbide substrate and new AlTiSiN coating for maximum tool life
Reliable machining of hardened steels up to 66 HRC, steels and non-ferrous metals
Available for thread types M, G, UNC, UNF
Thread length up to 2.5 x D
Increased stability without internal cooling, cooling takes place via clamping devices or alternatively by external cooling supply

Please contact us for more information on new and innovative solutions from JBO!

HORN: High Performance in Stainless Steels

Horn has developed a new, solid carbide milling cutter range especially for machining stainless steels. The tools are for milling stainless materials in the food, chemical and pharmaceutical industries as well as the precision engineering and watchmaking industries. In addition, due to their geometry and good chip breaking, the milling tools are suitable for machining numerous other materials. Due to the precise combination of the substrate, the macro and micro geometry as well as the IG3 coating, the milling system exhibits high performance and long tool life. The coating in particular offers high temperature resistance for machining steels alloyed with chromium, nickel and molybdenum.

Horn offers the solid carbide milling tools from stock in two types. The DSHPR variant is suitable as both a finishing and a roughing tool. The geometry is also adapted for trochoidal machining and plunging. The DSR type, with its very sharp cutting edge geometry and short design, is suitable for very small parts and unstable clamping conditions, such as in the medical and watchmaking industries. In the DSHPR line, all tools are available with four teeth and in diameters from 2 mm (0.079″) to 20 mm (0.787″). Horn offers the DSR variant with three teeth in diameters from 1 mm (0.039″) to 10 mm (0.394″).