Flow formed drum with a retention ring and a substantially burr free tooth profile
AssigneeMetal Forming & Coining Corporation
InventorsTimothy J. Cripsey, Robert J. Herston
Life of this patent
Estimating the term…
Abstract
A flow formed part includes a first end, a second end, and a side wall extending therebetween. A reinforcing member is disposed around the second end. The side wall has a profile formed along an inner surface of the side wall. The profile is adapted to be substantially burr free after windows are formed in the sidewall. A method of making a flow formed part includes the steps of disposing a preform on a tailstock, providing a plurality of rollers adjacent the tailstock, providing a mandrel having an outer surface including a plurality of alternating channels and protuberances, and causing the rollers to press the preform against the outer surface of the mandrel.
Claims20
A method for making a flow formed part comprising the steps of:
- disposing a preform on a tailstock;
- providing a plurality of rollers adjacent the tailstock;
- providing a mandrel having a first end adapted to receive the preform, a second end disposed opposite the first end, and an outer surface including a plurality of alternating channels and protuberances extending therebetween;
- causing the rollers to press the preform against the outer surface of the mandrel to form the flow formed part;
- removing the flow formed part from the mandrel;
- and
- forming an integral reinforcing member on the flow formed part by one of a flow forming process and a secondary manufacturing process.
A method for making a flow formed part comprising the steps of:
- disposing a preform on a tailstock;
- providing a plurality of rollers adjacent the tailstock;
- providing a mandrel having a first end adapted to receive the preform, a second end disposed opposite the first end, and an outer surface including a plurality of alternating channels and protuberances extending therebetween;
- causing the rollers to press the preform against the outer surface of the mandrel to form the flow formed part, wherein the flow formed part includes an inner surface with a profile formed thereon including a plurality of alternating channels and protuberances;
- removing the flow formed part from the mandrel;
- forming a plurality of windows in each of the channels of the flow formed part between adjacent ones of the protuberances of the flow formed part;
- and
- forming an integral reinforcing member on the flow formed part by one of a flow forming process and a secondary manufacturing process.
A system for making a flow formed part comprising:
- a tailstock configured to receive a preform;
- a plurality of rollers adjacent the tailstock;
- a mandrel having a first end adapted to receive the preform when the rollers press the preform against the mandrel, a second end disposed opposite the first end, and an outer surface including a plurality of alternating channels and protuberances extending between the first end of the mandrel and the second end of the mandrel, wherein the alternating channels and protuberances define a tooth profile of the flow formed part that permits the formation of substantially burr free windows and a retention member.
Dependencies are inferred from the claim text.