公开(公告)号：US20180330858A1

公开(公告)日：2018-11-15

申请号：US15595089

申请日：2017-05-15

Applicant: OTIS ELEVATOR COMPANY

Inventor： Jagadeesh Kumar TANGUDU ,  Michael A. KLECKA ,  Richard N. FARGO

IPC: H01F7/02 ,  H01F41/02 ,  H01F13/00

CPC classification number: H01F7/021 ,  B22F3/008 ,  B22F3/1055 ,  B22F2999/00 ,  B23K9/048 ,  B23K9/173 ,  B23K9/23 ,  B23K20/1215 ,  B23K20/122 ,  B23K20/233 ,  B23K2101/08 ,  B23K2101/38 ,  B23K2103/08 ,  B33Y10/00 ,  B33Y80/00 ,  B66B9/025 ,  C23C24/04 ,  H01F13/003 ,  H01F41/0253 ,  H02K7/06 ,  H02K15/03 ,  H02K49/102 ,  B22F2202/05

Abstract: An illustrative example embodiment of a method of making a rotary magnetic drive member includes establishing a helical magnet on a rod using an additive manufacturing process.