Wear parts for the automotive industry
CERATIZIT secrets of success Secrets of success CERATIZIT is your partner for exceptional hard material solutions. Hard materials and tools from CERATIZIT our solutions to complex problems are an integral part of our customers success. Our products guarantee: economy long life speed! And it is precisely this combination which gives our business partners a direct competitive advantage. Premier performance is only possible through a total appreciation of the requirements of our business partners. A performance achieved through fl exible thinking and continuous dialogue with our customers. A pioneering spirit and a deep understanding of powder metallurgy characterize the history of CERATIZIT. One of the attributes of our company philosophy is the search for perfection: target oriented sustainably passionately! Intensive research and development activities, taking into account the precise requirements and working processes of the customer, are today s investment for the solutions of tomorrow and beyond. Corporate values 1 2 3 The views and focus of our business partners matter Innovative and fl exible thinking matters Communication matters 4 Employee development matters 5 Professionalism matters 6 Our environment matters Tailored solutions for wear parts Hard materials in general and hard metals in particular are characterised by a range of interesting properties for all applications where maximum wear resistance is required. The stress exerted on wear parts during application is above all defi ned by various interacting factors. High pressure, high temperature, the application of abrasive or aggressive media, and the machining of hard materials are only some examples of factors that cause wear and to which hard materials and hard metals must be resistant. The powder metallurgical production of CERATIZIT wear parts enables tailored adaptation of the tool properties to the wear criteria. 2
Tailor-made hard materials for wear part applications Hard materials for industrial applications Wear resistance Natural diamond PCD Relevant criteria for application: Wear resistance, hardness CBN Ceramic (O) Ceramic (N) Compressive strength Impact strength Transverse rupture strength Cermet Tribological properties Specific weight HSS Toughness is a hard material with mechanical properties that can be adjusted within a very wide range, given its composition and microstructure. The hardness and toughness range of the CERATIZIT grades includes everything from wear resistant tool steel to superhard ceramic materials. Magnetic properties Modulus of elasticity, rigidity Thermal properties Corrosion resistance, resistance to oxidation The hard material provides: Hardness hard material phase Wear resistance metallic binder phase hard material phase 5 µm The metallic binder provides: Toughness Micrograph of cemented Classification of the WC grain size Average grain size [µm] Classification CT Code < 0,2 nano N 0,2 - < 0,5 ultrafine U 0,5 - < 0,8 submicron S 0,8 - < 1,3 fine F 1,3 - < 2,5 medium M 2,5 - < 6,0 coarse C > 6,0 extra-coarse E The classification of the s with regard to grain size corresponds to the recommendations of the Powder Metallurgy Association. 3
Tailor-made hard materials for wear part applications Combination of properties: hardness (= resistance to wear), transverse rupture strength and toughness. CEMENTED CARBIDE WC-Co WC-(Ni, Co) WC-(Fe, Ni, Co) High density (> steel) Electrical conductivity High transverse rupture strength High compressive strength Application range: for example, processing technology metal forming tool construction automotive industry chemical industry CERMETS Ti(C, N) Mo 2 C WC Co/Ni, TiC Mo 2 C Ni Medium density (~ steel) Reduced tendency to diffusion High heat resistance High oxidation resistance Reduced tendency to adhesion High edge strength Good chemical resistance Application range: for example, watches and jewellery metal forming SILICON NITRIDE Si 3 N 4 Low density (<< steel) Good friction properties High resistance to thermal shock Very good chemical resistance No electrical conductivity Good mechanical properties up to 1200 C Application range: for example, roll body metal forming automotive industry 4
Tailor-made hard materials for wear part applications Properties of cemented in dependance of Co content and WC grain size HARDNESS (=WEAR RESISTANCE) Water-jet cutting Type of stress Wear Corrosion Carbide grade Very high hardness: 2650 HV30 Small grain size: <0.5 μm Low Co content: 0.4% Corrosion resistance when adding Cr3C2 Cobalt content Grain size Cobalt content Grain size Cobalt content Grain size TRANSVERSE RUPTURE STRENGTH TOUGHNESS Micro-drilling Type of stress Wear Deflection (breakage) Carbide grade High bending strength: >4000 MPa Small grain size: <0.5 μm + VC Co content: ~ 8.5% High wear resistance: 1930 HV30 Hot rolling Type of stress Wear due to abrasion Built-up edge Carbide grade Sufficient fracture toughness: Co content 20% Good wear resistance: 1030 HV30 Binder metal layer as thin as possible low tendency to adhesion Medium grain size 1.5 μm 5
CERATIZIT hard materials for better performance Valve Seats Fuel Pump Rollers Cam Rollers Roller Bearings Engine Valves Solenoid Valve Seats Inserts Injector Levers Axes Valve Pistons Polygon 6
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Tailor-made materials for the automotive industry Carbides WC-Co WC-Ni Ceramics Si 3 N 4 Ever increasing stress on motors and similar systems requires properties which cannot be fully satisfied by conventional materials. The CERATIZIT hard materials which are produced applying powder metallurgy are characterized by corrosion resistance and resistance to oxidation, the capability to bear high mechanical stress, long tool life without damaging the surface and the possibility of inexpensive high volume production. The long-standing experience in the production of hard materials and the implementation of development projects together with our customers guarantee high competence with regard to sophisticated wear part solutions in the automotive industry. Our QA management systems correspond to ISO 9001. 8
Material properties Physical properties Vickers hardness at room temperature Density at room temperature 10% Co, submicron 14% binder Silicon nitride SNC1 Silicon nitride Carbon steel 0 400 800 1200 1600 Hardness [HV30] Carbon steel 0 2 4 6 8 10 12 14 16 Density [g/cm 3 ] Mechanical properties Transverse rupture strength at room temperature Specific rigidity at room temperature (= modulus of elasticity / density) Silicon nitride Carbon steel 0 1000 2000 3000 4000 Transverse Rupture strength σв [MPa] Silicon nitride Carbon steel 0 20 40 60 80 100 Specific rigidity E/ρ [GPa (g/cm 3 ) -1 ] Thermal properties Thermal conductivity at room temperature Thermal expansion coefficient at 20 400 C Silicon nitride Carbon steel 0 20 40 60 80 100 Thermal conductivity λ [W/mK] Silicon nitride Carbon steel 0 2 4 6 8 10 12 14 Thermal coefficient α [10-6 K -1 ] 9
Grade characteristics Modulus of elasticity, Poisson s ratio, density and thermal expansion coefficient WC-Co Modulus of elasticity [GPa] 700 600 500 400 300 200 100 0 0,245 0,240 0,235 0,230 0,225 0,220 0,215 0,210 2 6 10 14 18 22 26 Poisson s ratio [-] Density [g/cm 3 ] 15,5 15,0 14,5 14,0 13,5 13,0 7,0 6,5 6,0 5,5 5,0 4,5 2 6 10 14 18 22 26 Thermal expansion coefficient [10-6 K -1 ] Co content [wt. %] Co content [wt. %] Modulus of elasticity Poisson s ratio Density Thermal expansion coefficient (20-400 C) Grade properties CERA- TIZIT grade Grades Density Binder Hardness Transverse rupture strength [wt. %] HV10 HV30 HRA [MPa] [P.S.I.] Grain size GRAIN SIZE SUBMICRON CTS20 MG18/TSM33 14,45 10,0 1650 1630 92,1 3700 537.000 submicron GRAIN SIZE ULTRAFINE CTU40S HE40 13,15 20,0 (CoFeNi) 1250 1240 88,9 3500 508.000 ultrafine CORROSION RESISTANT GRADES CTM16N K16 Nm 12,70 8,0 (Ni) 1300 1290 89,4 2400 348.000 coarse CTS17R KR16/V714 14,65 8,5 (NiCr) 1600 1580 91,7 2800 406.000 submicron CERMETS (TiC-BASIS CARBIDES) CTF28T TCN541 6,40 14,0 (CoNi) 1550 1530 91,4 2400 348.000 fine CTF36T TWF18 5,90 18,0 (Ni) 1470 1450 90,8 1800 261.000 fine SILICON NITRIDE (Si 3 N 4 ) SNC1 SNC1 3,25 9,0 1550 1530 91,4 1100 160.000 ultrafine SNCB5 SNCB5 3,25 12,5 1500 1480 91,1 1000 145.000 ultrafine SNC11 SNC11 3,30 12,0 1450 1430 90,7 1000 145.000 ultrafine 10
CERATIZIT worldwide CERATIZIT worldwide Production sites in the three big economic areas with a worldwide network of CERATIZIT sales and support engineers plus many CERATIZIT distribution partners guarantee customer vicinity. We maintain the dialogue with our customers and strive for long-term partnerships. Find your personal distribution partner at: www.ceratizit.com CERATIZIT worldwide production sites and support centres CERATIZIT worldwide sales centres CERATIZIT worldwide distribution partner network Headquarters: CERATIZIT S.A. Parent company in Luxembourg CERATIZIT Luxembourg Sarl Route de Holzem, B.P. 51 L-8201 Mamer Tel.: +352 312 085-1 Fax: +352 311 911 E-mail: info@ceratizit.com www.ceratizit.com 11
399 399 EN 11.07 7001410 We reserve the right to make technical changes for improvement of the product.