Nice show of PM progress

Nice show of PM progress

Nice show of PM progress his autumn the international powder metallurgy (PM) community can sample the very latest advances in PM materials, forming te...

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Nice show of PM progress his autumn the international powder metallurgy (PM) community can sample the very latest advances in PM materials, forming technologies and design in the congenial setting of Nice in southern France. The annual EURO PM conference, organized by the European Powder Metallurgy Association (EPMA), runs from 22-24 October and this year covers the full array of PM and particulate material technologies. The programme of presentations covers powder production, powder compaction and injection moulding, sintering, microstructure, process modelling, rapid tooling, magnetic materials, PM steels, hard materials and case studies. The oral and poster sessions are supplemented by a series of special interest seminars on materials testing and quality management, powder compaction modelling, dynamic properties and PM applications. Running in conjunction with the congress, the EURO PM2001 exhibition will demonstrate the

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state of the art from leading PM suppliers, as well as including a showcase of PM parts. In its preview of the exhibition, Metal Powder Report provides an overview of what will be on offer, concentrating particularly on the most recent developments.

Powders and production UK-based atomization technology specialist Atomising Systems Ltd (ASL) (Sheffield, stand 17) recently moved to larger premises in order to accommodate a new pilot-scale atomizing facility (Figure 1). The first stage of the installation, a gas atomizer for 30-150 kg melts, is now complete; the second stage will see the installation of a water atomizer with similar capacities. The exhibit will focus on details of the pilot facility, which not only allows ASL to carry forward its own comprehensive R&D programme, but also offers clients the opportunity to assess special alloy types and chemistries, before committing to produce them on an existing system, or investing in new atomizing plant.

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ASL says the facility could also be used to produce certain powder types for which the demand from consumers may always be too limited to justify investment in a dedicated atomizing system. Also focusing on powder production, Phoenix Scientific Industries (PSI) Ltd of Hailsham, UK (stand 68) will be presenting details of its recently launched hot gas atomization technology for the production of fine powders, in addition to promoting its range of powder production equipment. Information on a joint operation between PSI and Qinetic, termed 'Powder and Process', established

Figure 1: ASL has moved to a larger facility in order to install pilot-scale gas and water atomization systems.

see front matter © 2o01 Elsevier Science Ltd. All rights reserved.

to look at the latest developments in novel powder applications will also be available. Major ferrous powder producer H6gan~is AB will use the Nice show to highlight its recent developments in chromium pre-alloys, high-density/high-strength materials and surface-densification. These three areas represent different stages of the value-added process. Carefully pre-alloyed proportions of atomized Fe, Cr and Mo provide a perfect base for a wide range of powder blends, H6gan~is says. Pre-alloyed highstrength materials will drive PM's expansion into demanding application areas that require high fatigue, tensile and yield strength; while surface densification, using pre-alloyed powders that are optimized for such treatment, further stretch these limits, and will hasten PM's successful use for applications such as transmission gears. The EURO PM 2001 show will see the launch of a new grade of atomized iron powder by Romania's Ductil Iron Powder SA (Buzau; stand 11). Ductil - recently established as an independent company (MPR September 2000, p. 7) claims that 'DP200 SD' has extremely high compressibility.

Quebec Metal Powders Ltd (QMP), headquartered in Montreal, Canada, will feature the wide range of iron and steel PM powders it manufactures in both North America and Europe. Its 'ATOMET' range comprises standard grades, prealloys and diffusion-bonded powders, while the FLOMET line is a range of bindertreated mixes. QMP also manufactures machinable (sulphur-free) grades, high green strength premixes and ferromagnetic composites. OMG Americas will be represented by its Brussels-based European office on stand 18. Its ferrous and non-ferrous metal powder ranges for the PM industry include stainless steel, iron, nickel, copper, tin, bronze, brass, copper oxide and cobalt. The company's development activities are currently focused on improved high corrosion resistant stainless steels, high green strength copper

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powders for carbon brushes, improved premixed and prealloyed bronze and brass powders, fine cobalt powders, and nickel alloy hard surfacing powders. Italy's Pometon SpA will also feature its ferrous and non-ferrous powders for PM applications. MicroMet GmbH Powder Technology (Hamburg, Germany; stand 39) will be focusing attention on its new 'MicroTronic' product family, which comprises micron and submicron pure copper powders. These powders are designed for electronic and MIM applications. In addition, the company will present its full range of copper, copper-alloy, lead and tin powders, and will introduce the high-quality water atomized powders now being produced at its Indian joint venture with Mahindra Sintered Products. Also focusing on fine powders, Osprey Metals Ltd (Neath, UK, stand 29) will highlight its expanding range of 'microfine' gas atomized powders with mean particle diameters from 3-90 !um. Non-ferrous powders will be featured by Makin Metal Powders Ltd (Rochdale, UK; stand 52/57), part of the United States Bronze group. Makin's display will showcase its atomized and electrolytic Cu powders, irregular and spherical bronze powders and premixes, and brass and tin powders. Hardmetal powders will be showcased by Osram Brunt~il spol of the Czech Republic. The company recycles tungsten carbide scrap to produce tungsten (0.6-6.0 I~m) and cobalt (1.1-1.8 tam) metal powders, tungsten carbide powders (0.8-6.0 tam), TaC (0.8-2.0 lam) and mixed TaNbC powders of a range of compositions. Making its EURO PM debut, Jinduicheng Molybdenum Mining Corp (JDCMMC) of Xi'an in China will promote its range of molybdenum-based products. These include a range of molybdenum powders of >99.8% purity for a variety Of applications (Figure 2), as well as ammonium molybdate and molybdenum trioxide powders. JDCMMC also manufactures Mo rod, wire and bar and other fabricated forms. The company says it is

Figure 2: IDCMMC produces Mo powders for use in sintered Mo alLoy products and other applications.

the largest complex for Mo mining, processing, research and trade in Asia, and the fourth largest producer of Mo products in the world.

Inco

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(Clydach, UK; stand 44/45) will use the Nice exhibition to promote its range of nickel powders for PM and MIM applications. These include Inco Type 123 Ni powder for structural PM parts; Type 255 used as a binder in hardmetals and diamond tools; the extra-fine carbonyl nickel powders Types 210 and 110, now being used as binders by the PM industry; and the fine spherical Type 4-SP nickel powder developed by Inco's Novamet group for MIM applications. Also promoting their powder products for PM applications are

Eckart Granules and Superior Graphite Europe.

Compactiontechnology The PM exhibition in Nice will see the European launch of a range of metal powder compaction presses from LASCO Umformtechnik GmbH of Coburg, Germany (stand 25). Best known as a manufacturer of tools and lines for massive and sheet-metal forming, the company has been supplying fully automatic powder forging lines to the PM industry for a number of years, and has now decided to extend its activities to compaction. The 'MPP' line is a series of servo-hydraulic CNC multi-platen presses equipped with four moving platens, a push-off piston in the upper ram, a core rod with a press stop and a stationary plate for pressing complex parts

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Figure 3: Dorst's TPA 15 HS hydraulic press for hardmetal inserts incorporates many innovations.

Figure 4: A die wall lubrication system will be among the equipment on display from 6asbarre Products.

with up to seven levels. The design of the multi-platen technique can be adapted to the specific demands of the customer. The presses can be supplied with an integrated tool frame or with exchangeable adapters. They combine die withdrawal in pressing with part release by ejection. According to LASCO, the use of mechanical stops with servo-motor adjustment allows repeatable synchronization of all press processes to a precision of 0.01 mm. A well-established player in the field of powder compaction technology, Dorst (Kochel am See, Germany) will also be focusing on

Figure 5: A selection of ALVlER's PM tooling components.

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a new line of presses, both on its stand and in the technical presentations. The hydraulic TPA 15 HS press is designed for the production of net shape carbide cutting tips to tolerances of a few microns (Figure 3). Dorst says it offers previously unattainable precision, ease of use and production speed. Greatly reduced set up time allows small lot sizes to be manufactured efficiently. The press combines a new quick tool changing system with high precision measuring and guide systems. It also features closed loop control, dual compaction from top and bottom and a new steel frame design for maximum rigidity. Dorst's stand will also highlight the company's 'IPG' software tool designed to maximize the efficiency of its latest generation of hydraulic presses. KOMAGE-GelIner of KeU am See, Germany, will present the latest information on its comprehensive range of mechanical, hydraulic and hybrid mechanical-hydraulic compaction presses. The company has recently introduced a new adapter technology, the 'MegaAdapter', with free movement of all axes and no fixed stops. KOMAGE says this allows high accuracy and an absolutely homogeneous density distribution. The Mega-Adapter is compatible with the company's recently launched S100 CNC-5E hydraulic press, which is equipped with six close loop controlled axes and a newly developed CN control system WILHELM FETTE GmbH (Schwarzenbek, Germany; stand 13) will use its exhibit to promote its range of high precision metal powder presses together with the RAG 2000 handling system. The presses are available with capacities of 120 kN, 250 kN and 500 kN; the MP 120 and MP 500 are equipped with various quality control functions to compensate or eliminate fill fluctuations. Manufacturer of both sintering and compaction equipment, Gasbarre Products Inc, headquartered in DuBois, PA, USA (stand 60/61) will be displaying a PTXPentronix 4 ton anvil press in

operation, together with a die wall lubrication system (Figure 4) and a fluidized fill shoe. In addition, brochures will be available on the group's full range of PM equipment, including mechanical and hydraulic powder compacting presses, sizing presses, high speed presses and TOPS warm powder heating systems, continuous belt sintering and pusher high temperature furnaces, sinter hardening and accelerated delubrication systems. Specialist manufacturer of PM tooling and adapter technology ALVIER AG PM-Technology (Buchs, Switzerland; stand 10/12) will use its exhibit to promote tooling components (Figure 5) for both pressing and calibrating complex multi-level parts. Particular specialities are the design and production of steel and tungsten carbide tooling for helical gearing and warm compaction. A showcase will display PM synchronizer hubs, camshaft adjustment systems and steering components resulting from latest developments between ALVIER and its customers. The company also develops and manufactures equipment such as multiplaten adapters for powder and sizing presses, helical gear adapters and pick-and-place devices. ALVIER was founded in 1987 and currently employs 30 staff. Lauffer Pressen, SMS Meer GmbH and Osterwalder AG will also promote their compaction technology, while Israel's Nocdan Molds and Dies will display its tooling capabilities. Moving away from traditional forming, Fraunhofer-IFAM (Bremen, Germany; stand 65) will focus particularly on rapid prototyping (RP) from metal powders at the Nice exhibition. IFAM has been working on the development of laser sintering techniques for a number of years and has now added to its RP portfolio by licensing the '3D-Printing' process from ProMetal Inc (Irwin, PA, USA). Metal parts manufactured by this method will be among the exhibits on display. IFAM will also highlight its development capabilities in the fields of lightweight constructions, advanced sintered and

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composite materials and powder process development.

Sintering equipment Equipment manufacturer ALD Vacuum Technologies AG (stand 26) of Hanau, Germany will focus on its range of vacuum-dewaxing and sintering furnaces (with and without overpressure) for the production of cemented carbides, MIM products and magnets. The company will also promote its vacuum induction melting furnaces, inert gas atomizers, ceramic free melting systems and nozzles, and related equipment. MIM sintering furnaces will also be featured by Elnik Systems and Cremer. US-based furnace manufacturer CM Furnaces, Inc of Bloomfield, NJ (stand 56), will use EURO PM2001 to highlight its line of high temperature sintering furnaces for traditional press/sinter, MIM and CIM applications. The company has shipped more than 55 automated pusher furnaces with temperature capability from 980-1850

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°C. CM will also promote its new line of batch atmosphere furnaces with hot wall construction which, it says, offers the capability to delube/debind and sinter at lower cost than vacuum systems. Societ~ Industriale Bagnolo (SIB) Srl (Bagnolo, Italy; stand 42) is a manufacturer of heat treatment systems, producing specially designed equipment for sintering stainless, high speed and tool steel powders, and carbon and copper based materials. SIB's range includes conveyor belt and pusher furnaces, the 'TURBO' rapid cooling system, supervision systems that plan, visualize and store heat treatment cycles and data, endothermic gas generators (Figure 6) and other equipment. MAHLER GmbH of Esslingen, Germany (stand 49/50) will use the show to promote its well-established programme of sintering and sinter-hardening furnaces. The company will also present its latest developments in coating technology and the heat treatment of nonferrous metals.

Also from Germany, ELINO Industrie-Ofenbau Carl Hanf GmbH will feature its PM range of pusher type, walking beam and mesh belt furnaces for sintering, steam treatment and pressure sintering, and protective atmosphere installations. In addition, samples of wire mesh belting for furnaces will be on display from the Furnace Belt Co Ltd (Mississauga, Canada; stand 36).

Figure6: SIB's PM productlines includeendothermicgas generators and conveyorbelt furnaces.

Caroline Edser Contact: European Powder Metallurgy Association Old Bank Buildings, BeUstone, Shrewsbury, SYI IHU, UK. Tel: +44-1743-248899; Fax: +44-1743-362968. www.epma.com •

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