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machinery & machine Safety


SicK’S WorlD-firSt SoliD-State Safety Scanner BooStS ProDuctiVity for Small autonomouS VehicleS


S


icK has launched the first multibeam safety scanner in the world to use safe, solid-state liDar technology to enable small


autonomous vehicles and line-guided shuttle systems to operate more quickly and productively. With the SicK scangrid2, small transport


vehicles like automated mobile robots (amrs) can operate safely at higher speeds and with higher payloads for a much lower cost-of ownership than has been previously possible using conventional safety laser scanners. the SicK scangrid2 is a type 2 device (BS en


61496-3) and can be used in safety functions up to Sil2 / Pld (BS en iSo 13849), as well as for collision avoidance duties. thanks to the safe, solid-state liDar technology of scangrid2, switching to a safety sensor now offers a rapid return on investment for these smaller vehicles, with the first pilot installations showing productivity increases between 50 and 70 per cent.


RapId RetuRn on InveStment


Dr martin Kidman, SicK’s uK machine safety product manager explains: “Small shuttle


systems are designed to be very simple and cost-effective materials handling assistants, so machinebuilders and operators have often not been able to justify the economics of fitting conventional laser scanners to protect personnel in hazardous areas and avoid collisions. instead, operators must limit the speed or the payload, or simply avoid using them in unfenced areas altogether. “in the first pilots using the scangrid2 on a


small amr, we were able to demonstrate that the maximum vehicle speed could be increased by about 75 per cent from 0.4 m/s to 0.7 m/s. that represents a significant return on investment in terms of productivity and can justify removing barriers and fencing to improve materials handling flexibility and throughput for more efficient workflows.” SicK engineers have designed the compact


scangrid2 to offer users everything they need for safe operation in a simple package, while ensuring rapid commissioning and maximum vehicle uptime. With a space-saving height of just 43 mm, the device can be retrofitted into existing vehicles, as well as designed into new machines.


novel SolId-State teChnology


the SicK scangrid2’s novel, in-house developed solid-state liDar solution operates with no moving parts using pure semi-conductor technology, with several transmitters, receivers and specialist optics arranged in a semi- circular array in the machine. the scangrid2 determines the distance to objects using the multibeam time-of-flight principle to scan a protective field of 150 degrees.


Secure machining for tough SurfaceS


and the ceramic cc6165 grade for roughing to semi-finishing applications are designed for machining difficult surfaces in hrSas. hrSas are typically used for aircraft parts that face extreme performance


S


demands. their high strength at elevated temperatures means the materials can retain their hardness when facing intense heat. the demand for lower emissions, higher fuel efficiency and power density in the transport and energy makes hrSa materials valuable in these applications. Because hrSa materials are metallurgically composed to have high


strength at temperatures up to 1,000°c, the stresses generated when machining them are high. the unique capability of these nickel, iron and cobalt-based super alloys to perform close to the melting point of their basic metal gives them generally poor machinability. Sandvik coromant’s new turning grades are optimised with these


machining challenges in mind. Developed for last stage machining applications in aerospace engine components, the S205 is a chemical vapour deposition (cVD) grade that offers increased productivity through higher cutting speeds in semi finishing and finishing applications. coated with second generation inveio coating for high wear


resistance and long tool life, post treatment technology strengthens the


andvik coromant has launched two new turning grades specifically designed for the machining of heat resistant super alloy (hrSa) materials. the S205 turning grade for finishing and semi-finishing


the SicK scangrid2 safely detects objects of


a variety of sizes within freely configurable protective field zones. it can evaluate multiple fields and can execute configurable monitoring cases. a warning field zone extends up to four meters beyond the safe 1.1 metre working range for non-safety actions. it is therefore ideal for safeguarding the main driving direction of small and guided amrs as well as for side protection and safeguarding the reverse drive of mobile platforms. installation of the scangrid2 is rapid using


easily accessible interfaces on the front of the sensor housing. it is easy to configure and integrate using familiar and intuitive software tools, such as SicK’s Safety Designer. using the SicK Safety assistant app,


diagnostics and servicing can be performed on the sensor quickly and easily, including with a smartphone. thanks to the addition of a near field communication (nfc) interface, sensor configurations can be transferred wirelessly from one sensor to another using a cloning function within the app.


SICK www.sick.co.uk


S205 insert by modifying its mechanical properties. the inveio technology forms tightly packed uni- directional crystals around the insert to create a strong protective barrier, while delivering maximum thermal protection to improve crater wear and flank wear resistance. ideal for use with aged


nickel-based materials and pre-machined surfaces, for machining components such as aircraft engine turbine discs, rings and shafts, the S205 boasts 30 to 50 per cent higher cutting speeds than competing hrSa turning grades without compromising tool life. the qualities of the cc6165 turning grade also offer superior resistance.


made from Siaion ceramic, a specialist class of high-temperature refractory materials with high strength at high temperature, the cc6165 is optimised for roughing and intermediate stage machining hrSas as well as for profile and general turning applications. Similar to the S205, typical components machined with the cc6165 are turbine discs, casings rings and valves.


www.sandvik.coromant.com


40 June 2021 | factory&hanDlingSolutionS


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