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hp tooling 2021 #2

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The journal of hp tooling is an english, global publication on all aspects of high precision tools, accessories and their applications.

materials & tools

materials & tools Precise and efficient during the machining process Minimal deviation, a longer tool life and advanced machining efficiency – Kyocera’s EZ Bar Series is perfect for small manufacturing and it is constantly expanding to offer a wide variety of applications. The manufacturing and internal machining of small parts requires precise quality tools – such as Kyocera’s EZ Bar Series, which has just been expanded with a new item: the EZBF type is able to make a one-shot boring process making a 90° step, which makes it a perfect addition to the innovative series. The whole EZ Bar series is ideal for high quality products due to their minimal deviation, the longer tool life and advanced machining efficiency compared to conventional tools. Especially with its unique EZ adjust function high precision indexing is easier than ever before: a wide variety of ID processes is possible – boring, back turning, grooving, facing and even threading – by just changing one tool. The latest addition to the line-up even allows for hole bottom face finishing processes. Overview of the common ID processes: 1. Boring For great boring and back turning results chip breaker, neck length and grade can be selected for the individual purpose – even PCD and cBN are available. Also suitable for boring is the EZ Bar Plus, a reversible boring bar that offers a unique solution to minimise tooling costs. This indexable bar can perform boring processes with a minimum cutting diameter of 5 mm. 2. Grooving Face grooving and internal grooving processes can be performed by the EZ Bar as well. It supports minimum adjustment pin is moveable bar end (slant) Adjustable overhang length (EZ adjust structure) adjustment pin EZ Bar with sleeve bore diameters of Ø 3-8 mm and cutting widths of 0.5- 2.0 mm. With its high rake angle, the EZ Bar is designed for stable machining without vibration and shows good chip evacuation. 3. Facing For facing applications, the EZ Bar Series has the EZVB type in the lineup. While up facing is not recommended, the EZVB type can be expanded to be able to perform hole bottom face finishing processes. EZ Bar and EZ Bar Plus during machining processes 4. Threading The EZ Bar Series is also able to perform threading processes. There is a wide range of applicable thread types in small ID processes: Metric, Unified, NPT, Whitworth, Parallel/Tapered pipe. The EZT type for threading has a bore diameter of Ø 3 mm and is available for threading M4 metric screw threads. For an even better high-quality finish the EZ Bar can be combined with the new PR1725 grade which is a PVD coated carbide grade. This original development of Kyocera named MEGACOAT NANO PLUS tackles several customer challenges at once: producing a better surface finish, providing a cost-effective solution with a long tool life and integrating tools for steel and stainless steels. With its superior wear and adhesion resistance it also results in reduced cracking while machining. To give customers more and better machining possibilities the EZ Bar lineup is constantly expanding. EZ Bar 45° Chamfering and EZ Bar Copying type are in the pipeline and will be released in early summer 2021 for a wider variety of applications. EZ Bar’s large tooling lineup for a wide application range further information: www.kyocera.co.uk 10 no. 2, April 2021

New generation of flagship turning grade materials & tools Dormer Pramet has upgraded its flagship PVD grade T8330 with a new coating generation, providing increased durability and performance. The T8430 will become the global manufacturer’s most versatile grade for general turning and heavy roughing, even in unfavorable conditions. Developed for steel and cast steel, the Pramet grade also performs well in stainless steel, cast iron and super alloys. A multi-layered PVD coating optimised for increased productivity, the T8430 provides up to 69 % more durability compared to the previous T8330. This is especially the case when machining raw steel blanks or difficult materials, such as Inconel and Stellite. A unique Titanium-Boron-Nitride (TiBN) top layer offers build-up edge reduction and improved performance, while a thick TiN coating gives low compressive stress for crater wear resistance. The T8430 is Dormer Pramet’s most versatile grade for general turning and heavy roughing In addition, the hard AlTiN of the T8430 secures flank wear resistance, with a bright gold TiN layer to support wear detection. further information: www.dormerpramet.com High-performance grinding wheels with precision The Blue Moon TM TZ is an innovation developed by the R&D department of Krebs & Riedel. The Blue Moon TM TZ extends the Blue Moon product family. It is characterized by high cutting performance and high metal removal rates. The abrasive grain used in the Blue Moon TM TZ is very sharp-edged, microcrystalline and has an elongated trapezoidal rod shape. Blue Moon TM TZ grinding wheels are particularly impressive due to their very low thermal load in the contact zone. The high profile retention of our grit combination leads to extended dressing intervals at high stock removal rates and increases economic efficiency. lens Z20:X100 100,0 μm The advantages are particularly evident when processing long contact lengths. Typical applications include full cut grinding, raceway grinding and profile grinding of gears with large modules. Your advantages at a glance The advantages are particularly evident when processing long contact lengths. Typical applications include full cut grinding, raceway grinding and profile grinding of gears with large modules. « very low risk of overheating while grinding « high removal rate « self-sharpening abrasive grain « short grinding times « reduced cost per unit « extended dressing intervals « long tool life Features « individual specifications to your process by adjusting the grain concentration « homogeneous, controllable pore space design « high friability during the dressing process Applications « deep grinding « raceway grinding / centerless grinding « applications with huge contact zones « gear grinding: profile grinding for large modules further information: www.krebs-riedel.de no. 2, April 2021 11

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