13.30 Raphael Schaller - Collano.pdf

1、Adhesion and Damping in Skis RevisitedWorarin Meesron&Raphael SchallerCollano AG,Neulandstrasse 1,CH-6203 Sempach Station,Switzerland Adhesives&Bonding EXPO Europe,Messe Stuttgart GermanyDecember 5,2024OutlineBackgroundInspirationCase study:adhesionCase study:dampingOutlook3 Per Ivar SombyOlympic wi

2、nter games ad,St.Moritz,1948Howard Head,US Patent,2,995,379,1958Anavon,ski factory,2022BackgroundSki manufacturing process6Manual assemblySki pressBackgroundSki layout and materials7a)CoPA top sheetb)Aluminum top chordc)ABS sidewalld)Wood coree)Aluminum bottom chordf)Steel edgeg)UHMWPE running surfa

3、ceabcdefgCoPA:copolyamidABS:acrylonitrile-butadiene-styreneUHMWPE:ultra-high molecular weight polyethylene Epoxy used to bond the in dividual materialsIssueDelaminationFailure between aluminum and epoxy8Typical delamination failure in skisOutlineBackgroundInspirationCase study:adhesionCase study:dam

4、pingOutlook9InspirationMetal rear injection molding10Step 1:coatingStep 2:forming&stampingStep 3:rear injectionAdhesive filmCoated metal coilFormed metal sheetInsertInjection moldingEjectLaminating at elevated temperature&under pressure Metal coilInspirationMetal rear injection molding11 Novem Car I

5、nterior Design GmbHBMW X4 door lineMercedes-Benz S-Klasse instrument panelOutlineBackgroundInspirationCase study:adhesionCase study:dampingOutlook12Case study:adhesionFrom automotive to skis13Metal coilTPU/PE-film Coated metal coilTop&bottom chordManual assembly PressingT=170 Cp=1.5 barv=1 m/minDemo

6、ldingT=120 Cp=20 bart=20 minStep 1:coatingStep 2:shapingStep 3:ski makingTPU:thermoplastic polyurethanePE:polyethyleneCase study:adhesionTPU/PE-film coated aluminum14Peel resistance/N/mmDisplacement/mm Highest peel resistance with TPU/PE-filmInitial:aluminum used as delivered aluminum coated with TP