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(11)

EP 3 551 354 A1

(12)

(43) Date of publication: 16.10.2019 Bulletin 2019/42 (21) Application number: 18842696.9 (22) Date of filing: 19.02.2018

(51) International Patent Classification (IPC):  B21B 45/04(2006.01) B24C 1/08(2006.01) B24C 5/06(2006.01) B21B 45/06(2006.01) B24C 5/04(2006.01) G01J 4/00(2006.01) (86) International application number: PCT/US2018/018621 (87) International publication number: WO 2019/160563 (22.08.2019 Gazette 2019/34)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: MA MD TN (71) Applicant: The Material Works, Ltd. Red Bud, IL 62278 (US)	(72) Inventor: The designation of the inventor has not yet been filed  () (74) Representative: Tomkinson, Alexandra  Bailey Walsh & Co LLP 1 York Place Leeds, LS1 2DR Leeds, LS1 2DR (GB)