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hp tooling 2021 #3

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  • High precision
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  • Tooling
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  • Processes
  • Components
  • Coating
  • Milling
  • Manufacturing
  • Machining
  • Grinding
The journal of hp tooling is the new global publication on all aspects of high precision tools, accessories and their applications.

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components For example, particularly small recording heads are conceivable for measuring points in aircraft construction that are difficult to access. In order to detect and measure a defect image, the recording unit is placed on the test object, an image recording is started and the pixels of the defect region are recorded using segmentation methods. Subsequently, defect characteristics such as defect size, defect type or quality indicators are determined using evaluation algorithms. After evaluation, the results are displayed to the operator in an output window on the touch screen of the inspection device (see figure 3). Industry 4.0 approaches for quality control The integration of AICC 2.0 into networked production is achieved by a local and a cloud-based server. Both server solutions are implemented against the background of offering a solution suitable for the different requirements of potential users in terms of data transmission rate, data security and investment budget. The servers not only offer the possibility of expanding the limited computing power of the embedded system with a powerful evaluation in real time, but also realise the integration of several test devices as well as a central administration of statistics and reports. By creating interfaces to processing machines and developing and implementing self-learning algorithms, process as well as quality control can be designed efficiently. The networking between component and testing device is realised with the help of QR codes. This allows specific measuring programmes to be defined for components and the measuring points to be visualised sequentially on the display. In addition, the measurement protocols can be clearly assigned to a component so that traceability is guaranteed. The interface between the processing machine and the testing device enables the adaptive adjustment of the measuring programme, for example to the wear condition of the cutting tools used. In this way, random sample measurements can be carried out on new cutting tools, while all relevant characteristics are checked towards the end of the cutting tools’ service life. Conversely, the machining quality recorded by the testing device can alert the operator to increasing tool wear or incorrect cutting parameters, which allows the processes to be controlled, regulated and optimised even before rejects are produced. The handheld unit AICC 2.0 thus enables in particular small and medium-sized enterprises in the machining and production industry to enter the digitalisation of quality assurance in manufacturing processes. Acknowledgements: The development project “AICC 2.0 – Networked Handheld Device for Automated Surface Inspection of CFRP Components” was funded by the Federal Ministry of Education and Research (BMBF) as part of the “Industry 4.0 Test Environments” funding programme and supervised by the DLR project management organisation. The authors would like to thank the BMBF for the funding and the project management organisation for its support. Literature [1] Eickenbusch, H.; Krauss, O.; (2013): Kohlenstofffaserverstärkte Kunststoffe im Fahrzeugbau – Ressourceneffizienz und Technologien Internet: http://www.ressource-deutschland.de [4] Zemann, R.; Sacherl, J.; Hake, W.; Bleicher, F.; (2015): New Measurement Processes to Define the Quality of Machined Fibre Reinforced Polymers Procedia Engineering 100, page 636 - 645); doi: 10.1016/j.proeng.2015.01.415 [2] Rummenhöller, S.; (1996): Werkstofforientierte Prozessauslegung für das Fräsen kohlenstofffaserverstärkter Kunststoffe Aachen: Shaker [5] DIN SPEC 25713; (2017): Beurteilung der Bauteilqualität nach der trennenden Bearbeitung von faserverstärkten Kunststoffen Ausgabe 2017-02 [3] Biermann, D.; Hufenbach, W.; Seliger, G.; (2008): Serientaugliche Bearbeitung und Handhabung moderner faserverstärkter Hochleistungswerkstoffe Dresden: Progress-media Verlag & Werbeagentur further information: www.ipa.fraunhofer.de 48 no. 3, September 2021

Supertec chooses NUM technology for its latest CNC cylindrical grinding machines components Supertec Machinery Inc., one of Taiwan’s leading machine tool manufacturers, has chosen to base new versions of its renowned plunge type of CNC cylindrical grinding machines on NUM’s Flexium+ CNC platform. Founded in 1954, Supertec Machinery Inc. has grown to become one of Taiwan’s top machine tool manufacturers. The company specialises in precision grinding automation and produces a diverse range of centerless, cylindrical and surface grinding machines. Based in Taichung City, Supertec operates sales and support facilities at strategic locations throughout Asia and Europe, as well as in the USA and South America. Supertec has traditionally used Fanuc CNC systems for most of its machine tools. However, when NUM added non-circular grinding functionality to its popular NUMgrind cylindrical grinding software back in June 2020, the company realised that this innovative CNC technology provided exactly what many of its customers needed on their cylindrical grinders. NUMgrind simplifies the creation of G code programs for CNC grinding machines through the use of a highly intuitive graphical human machine interface (HMI), and unlike conventional CAD/CAM workstation tools, it is designed specifically for use by shop floor personnel in a production environment. After evaluating the software, Supertec immediately raised a purchase contract with NUM. According to Betty Chu, Supertec’s assistant general manager, “NUM has an excellent reputation in the grinding industry. Much like Supertec, this has been earned over many years. And the latest version of NUMgrind, which accommodates non-circular grinding, is a natural fit for our CNC cylin - dri cal grinding machines. We now also benefit from very responsive local support – NUM’s Taiwan facility is less than 15 km away from our factory.” Supertec’s latest plunge type CNC cylindrical grinding machine accommodates complex parts requiring non-circular grinding Supertec’s Plunge type of CNC cylindrical grinding machines offer a choice of six capacities, covering distances between centers from 500 mm to 2,000 mm. The machines can also accommodate grinding diameters from 300 up to 430 mm (3 sizes), grinding wheel speeds up to 1,390 rpm and workhead spindle speeds from 30 to 350 rpm. The new versions of these machines are based on NUM’s Flexium+ 8 CNC platform and use NUM’s high performance MDLUX drives and brushless servo motors for the X-, Z- and C-axes. In addition to the NUMgrind HMI, the software that is being supplied by NUM includes the Flexium 3D simulator, which can be used offline or online, and an application-specific profile editor which enables users to import DXF files. Supertec’s latest plunge type CNC cylindrical grinding machine is based on NUM’s Flexium+ CNC platform; left Mr. Chu, general manager of Supertec; right Adrian Kiener, CSO Asia NUM Johnny Wu, general manager for NUM Taiwan, points out, “The ability to use the Flexium 3D simulator both offline and online provides Supertecs’ customers with a distinct advantage. CNC programs can obviously be prepared offline and checked for potential problems such as collisions before being transferred to the machine. But the simulator can also be used online. This enables operators to gain vital visibility of the grinding process – which is normally obscured by the flow of oil.” further information: www.num.com //www.supertec.com.tw no. 3, September 2021 49

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