WiN woodworking INTERNATIONAL 2022/1

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TOOLS Nesting of solid core panels Application data and tips With their continuous alternating shear angles and application-oriented cutting edge geometry as well as PCD quality, LEUCO DP shank-type cutters for machining solid core panels achieve clean, chip-free cuts when parting and formatting. When used together with LEUCO’s expert tips, clean and economical machining is guaranteed. Part in a single pass with finish-cut quality at an appropriately reduced feed rate. As an alternative, you can pre-size the workpieces in order to then finish-cut with a lower removal volume at a correspondingly higher feed rate. The significantly reduced machining needed by the finish cutter greatly extends the edge life of the quality-enhancing tool. In addition to the familiar finish cutters, LEUCO offers for this purpose a diamond-tipped roughing cutter with which correspondingly high material removal rates can be achieved. The main objective: avoid high temperatures Particularly with nesting and the associated limited chip ejection possibilities, excessively high speeds and overly low feed rates can lead to severe heating of the material (lumpy chips!) and the tool. The known effects of heat are • high cutting edge wear: short edge lives • loss of teeth: tooth replacement and lower overall life • poor cutting surfaces/lubrication: rework required or rejects • fire hazard in the extractor hood due to the possibility of extremely hot / glowing chips It is therefore even more important to avoid multiple cutting in solid-core materials than in conventional wood-based materials. The speed should generally not be set too high. The number of teeth must be matched to the feed rate. Note: The feed rate value entered into the control often is not the actual average feed rate, since this is frequently not reached at all. This is particularly the case with relatively small-format workpieces and narrow, nested structures. Here, a two-flute cutter instead of a 3-flute cutter is often the better and more economical choice. High-precision clamping elements And the following applies not only to all diamond-tipped tools: Tools should only be used in highly precise clamping elements: hydro expansion chucks, TRIBOS power shrink chucks or heat shrink chucks. A proven means of effectively avoiding multiple cutting can relatively often also be the use of suction turbines with hydro expansion chucks. The ideal application parameters and the achievable results can be determined within the framework of a test carried out together with the tool supplier on the customer’s machine under real-world conditions. www.leuco.com These feed rates are to be regarded as max. values for guidance. They also depend, among other things, on the required cut quality and the nature of the material to be processed. In some cases, there are relevant differences in terms of hardness and temperature sensitivity. The data refer to the processing of panel thicknesses of up to 10 mm. For higher material thicknesses, feed rates must be reduced accordingly. Higher speeds are possible, but resulting higher temperatures can greatly reduce single edge lives and also the overall life of the tool, especially at n>18,000 Solid core panel nesting is challenging, because the panels react in particular to the frictional heat during milling and thus have a highly abrasive effect on the milling cutters. The diamond-tipped LEUCO DP solid core panel roughing cutter (left) and the LEU-CO DP solid core panel cutter Z=2 or Z=3 are ideal tools when the above application parameters are taken into account 10 No. 1 • March <strong>2022</strong>
From single tool to product family T +49 2961 7405-0 hello@rembe.de When sizing panel material, tools are usually used that are loud and heavy due to their structural design. The result is stress for man and machine. More than ten years ago, Leitz developed the pioneering tool solution for this problem that still sets the standard in terms of sustainability, efficiency and quality in edgebanding: the lightweight and quiet Diamaster WhisperCut jointing cutterhead. In the meantime, the world market leader from Oberkochen has turned it into a complete system family. With the available product variants, including one with an integrated HSK 32 R adaptor, users will in future be able to optimize existing jointing concepts and also optimize their production costs. Made in Germany significantly reduced compared to conventional systems. A solution that can be described as efficient in all respects. The Diamaster WhisperCut product range is available in numerous design variants and can be used on almost all common machine types. (Photo: Leitz) Light, quiet and efficient – these few words describe the advantages of the WhisperCut programme. In detail, it becomes apparent that it is the technical design of the tools that produces perfect edges and cut surfaces and also makes the jointing cutterhead significantly quieter. The reason for the noise reduction of up to 5 dB(A) is, on the one hand, the closed shape of the light metal tool body, which, with 50 percent less weight, protects the machine and the ears of the user, and, on the other hand, the special machining quality is explained by the proven DFC ® technology, with the help of which up to 95 percent of the chips are collected. But that is not all. Considering the entire machining process, the WhisperCut cutterhead also saves time and money. Imitated by many tool manufacturers, the WhisperCut system still sets standards as an original – especially with regard to costs and maintenance. The specially developed diamond cutting edges can be resharpened several times in the tool. Alternatively, the replaceable cutting edges can be replaced directly by the user, which means that the diameter of the tool always remains constant. Set-up and adjustment times are thus No. 1 • March <strong>2022</strong> The Diamaster WhisperCut jointing cutterhead is available in several versions. One is the basic version, whose cutting edges can be resharpened up to three times, and the WhisperCut PLUS version with an enlarged resharpening area on the cutting edges, which can be resharpened up to ten times. Both versions are available with a bore or shank, depending on the requirements. In addition, the WhisperCut jointing cutterhead is also available with an integrated hydro adaptor or with a fitted HSK 32 R adaptor. Both adaptor variants offer significant advantages in terms of concentricity and axial run-out accuracy, machining quality and tool life extension. For users of laser edging systems, Leitz also has the WhisperCut EdgeExpert variant in its product range. Also resharpenable up to three times, it impresses with its special cutting edge arrangement and provides even better machining quality. On request, these jointing cutterheads can also be supplied as a PLUS variant and can therefore be resharpened up to ten times. With the development of the WhisperCut system family, Leitz has demonstrated its leadership in the customer-oriented development of tool systems for the furniture industry. Even more advantages and time savings are generated for users who have the jointing cutterheads resharpened in one of the more than 120 Leitz service centres around the globe. Perfectly sharpened in manufacturer quality, balanced and including the supplied setting data, the tools can thus be used easily, quickly and reliably. www.leitz.org © REMBE® | All rights reserved PROTECT YOUR PLANT! Consulting. Engineering. Products. Service. Gallbergweg 21 | 59929 Brilon, Germany F +49 2961 50714 | www.rembe.de
Page 1 and 2: ISSN 1438-1672 · Vol. 40 · No. 1/
Page 3 and 4: CONTENTS EDITORIAL See ... Eric Sch
Page 5 and 6: Impressum ISSN 1438-1672 WiN - wood
Page 7 and 8: COMPANIES Dr. Sergej Schwarz Member
Page 9: COMPANIES New procedure for recogni
Page 13 and 14: MACHINING TECHNOLOGY OSB from date
Page 15 and 16: MACHINING TECHNOLOGY Defect: raw, r
Page 17 and 18: MACHINING TECHNOLOGY New equipment
Page 19 and 20: USER REPORT Efficient pump technolo
Page 21 and 22: MASS TIMBER CONSTRUCTION Green Tech
Page 23 and 24: SURFACES High-performance coating s
Page 25 and 26: SUSTAINABILITY — this time of the
Page 27 and 28: WINDOWS Energy efficiency with hist
Page 29 and 30: FURNITURE Awarded by the German Des
Page 31 and 32: EVENTS Conference topics create lin
Page 33 and 34: FAIRS HOLZ-HANDWERK and FENSTERBAU
Page 35 and 36: GUIDE TO PRODUCTS AND MANUFACTURERS

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