公开(公告)号：US20180215058A1

公开(公告)日：2018-08-02

申请号：US15419292

申请日：2017-01-30

Applicant: Ford Motor Company

Inventor： William Edmunds DOWLING, JR. ,  David Alan STEPHENSON ,  Timothy George BEYER

IPC: B26D3/06 ,  F02F1/00

CPC classification number: B26D3/06 ,  B23B41/12 ,  B23C3/34 ,  B23C5/1081 ,  B23C2226/315 ,  B23C2240/08 ,  C23C4/02 ,  C23C30/005 ,  F02F1/004 ,  F02F2200/06

Abstract: Tools and methods for forming modified mechanical roughening profiles are disclosed. In at least one embodiment, an engine block is provided including a body defining a cylinder bore having a bore surface. The bore surface may have defined therein a plurality of grooves extending from the bore surface and each groove may have a base and a top portion. The top portion may have opposing chamfered edges. The chamfered edges may be formed by a tool including at least one cutting element having triangular teeth and at least one cutting element having rectangular teeth. In another embodiment, a tool including at least one cutting element having curved teeth and at least one cutting element having rectangular teeth may be used to form grooves having a curved/radiused edge surface. The disclosed roughening profiles may reduce oxide growth when a coating is applied to the bore surface.