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Styli and accessories - technical specifications guide

Styli and accessories - technical specifications guide
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Styli and accessories - technical specifications guide - 1

Renishaw plc New Mills, Wotton-under-Edge, Gloucestershire GL12 8JR United Kingdom T +44 (0) 1453 524524 F +44 (0) 1453 524901 E uk@renishaw.com Technical specifications H-1000-3200-15-A www.renishaw.com Styli and accessories When precision counts, insist on genuine Renishaw styli. Don’t settle for less! Renishaw is an established world leader in metrology, providing high performance, cost-effective solutions for measurement and increased productivity. A worldwide network of subsidiary companies and distributors provides exceptional service and support for its customers. Renishaw designs, develops and manufactures products which conform to ISO 9001 standards. Renishaw provides innovative solutions using the following products: • • • Systems for job set-up, tool setting and inspection on machine tools. Scanning and digitising systems. Laser and automated ballbar systems for performance measurement and calibration of machines. Japan Spain T +81 3 5366 5324 E japan@renishaw.com T +34 93 663 34 20 E spain@renishaw.com T +61 3 9521 0922 E australia@renishaw.com Malaysia Sweden T +60 3 5631 4420 E malaysia@renishaw.com T +46 8 584 90 880 E sweden@renishaw.com The Netherlands Switzerland T +31 76 543 11 00 E benelux@renishaw.com T +41 55 415 50 60 E switzerland@renishaw.com Poland Taiwan T +48 22 577 1180 E poland@renishaw.com T +886 4 2473 3177 E taiwan@renishaw.com Russia Thailand T +7 495 231 1677 E russia@renishaw.com T +66 2746 9811 E thailand@renishaw.com Singapore Turkey T +65 6897 5466 E singapore@renishaw.com T +90 216 380 92 40 E turkiye@renishaw.com Slovenia UK (Head Office) T +386 1 527 2100 E mail@rls.si T +44 1453 524524 E uk@renishaw.com South Korea USA T +82 2 2108 2830 E korea@renishaw.com T +1 847 286 9953 E usa@renishaw.com Austria T +43 2236 379790 E austria@renishaw.com Brazil T +55 11 4195 2866 E brazil@renishaw.com Canada T +1 905 828 0104 E canada@renishaw.com The People’s Republic of China T +86 21 6353 4897 E shanghai@renishaw.com Czech Republic T +420 548 216 553 E czech@renishaw.com France T +33 1 64 61 84 84 E france@renishaw.com Germany T +49 7127 981-0 E germany@renishaw.com • Encoder systems for high accuracy position feedback. • Spectroscopy systems for non-destructive material analysis in laboratory and process environments. Styli for inspection and tool setting probes. T +36 23 502 183 E hungary@renishaw.com • Customised solutions for your applications. T +44 1453 524524 E international@renishaw.com T +852 2753 0638 E hongkong@renishaw.com • For all other countries www.renishaw.com • Probe systems for inspection on CMMs (co-ordinate measuring machines). Renishaw worldwide Australia Styli and accessories - technical specifications Renishaw applies innovation to provide solutions to your problems India Hong Kong Hungary T +91 20 6674 6751 E india@renishaw.com Israel T +972 4 953 6595 E israel@renishaw.com T +39 011 966 10 52 E italy@renishaw.com ©Renishaw plc 2002 - 2009 Printed in the UK Part No. H-1000-3200-15-A Issue 15 Italy

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Styli and accessories - technical specifications guide - 3

Contents Section 1 Technical specifications quick reference guides Quick selection from our extensive range. Section 2 Accuracy at the point of contact Section 3 Section 4 An explanation of why it is important to choose the right stylus for your application and an overview of the entire range of stylus types. M2 threaded stylus range Styli for use with the industry standard CMM probes TP2, TP20, TP200 and Revo. M3 threaded stylus range Styli for use with manual CMM probes TP1 and TP6 and the most flexible scanning probe, SP25M and Revo. Section 5 M4 threaded stylus range Optimised for...

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Styli and accessories - technical specifications guide - 5

Quick reference guide Technical specifications Ball material properties Grade Material Deviation from spherical form Structure Composition Purity Density Hardness Compression strength Bending strength Fracture toughness K1c (µm) Stylus type – (wt%) (%) (g/cm3) HV (MPa) (MPa) (MN/m3/2) AL2O3 Ruby balls Synthetic ruby monocrystalline Grade 5* 0.13 mono 99% AL2O3 99.90 3.90 2300 2100 400-700 1 Silicon nitride balls Hard pressed Si3N4 Grade 5* 0.13 poly Si3N4 90 3.0-3.2 1600 3000 850 6 Zirconia oxide balls Sintered ZrO2 Grade 5* 0.13 poly ZrO2 90-95 6.05 1200 2000 1000 10 Alumina hollow balls...

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Styli and accessories - technical specifications guide - 11

Accuracy at the point of contact 2.1

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Styli and accessories - technical specifications guide - 12

Accuracy at the point of contact Styli and accessories 2.2 Accuracy at the point of contact As industry has developed its requirement for increasingly diverse and complex manufactured parts, inspection systems have had to work hard to keep up. The use of co-ordinate measuring machines (CMMs) with probing systems and in-process inspection on machine tools are two of the solutions offered by Renishaw to help you maximise your productivity and maintain the highest quality. Successful gauging depends very much on the ability of the probe’s stylus to access a feature and then maintain accuracy...

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Styli and accessories - technical specifications guide - 13

Ball material B A A Ball diameter B D Overall length C Stem diameter D Effective working length C Overall length Renishaw uses a standard description of overall length, measuring from the rear mounting face of the stylus to the centre of the ball. Effective working length (EWL) This is measured from the centre of the ball to the point at which the stem will foul against the feature when measuring 'normal' to the part. Choosing a stylus To maintain accuracy at the point of contact we recommend that you: Keep styli short The more that a stylus bends or deflects, the lower the accuracy....

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Styli and accessories - technical specifications guide - 14

Styli and accessories Accuracy at the point of contact Tungsten carbide 2.4 Tungsten carbide stems are best used for maximising stiffness with either small stem diameters required for ball diameters of 1 mm and below, or lengths up to 50 mm. Beyond this, weight can become a problem and stiffness is lost due to deflection at the stem to body joint. Ceramic For ball diameters greater than 3 mm, and lengths over 30 mm, ceramic stems offer stiffness comparable to steel but are significantly lighter than tungsten carbide. Ceramic stemmed styli can also offer additional crash protection to your...

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