JOHN M SARKISIAN
Engineering in Northborough, MA
License number
Massachusetts 26285
Expiration Date
Jun 30, 2008
Type
Mechanical Engineer
Address
Address
Northborough, MA 01532
Professional information
Stepped, Segmented, Closed-Die Forging
US Patent:
5868026, Feb 9, 1999
Filed:
Dec 9, 1996
Appl. No.:
8/663056
Inventors:
John M. Sarkisian - Northboro MA
John R. Palitsch - Shrewsbury MA
Joseph J. Zecco - Shrewsbury MA
John R. Palitsch - Shrewsbury MA
Joseph J. Zecco - Shrewsbury MA
Assignee:
Wyman-Gordon Company - North Grafton MA
International Classification:
B21J 1302
US Classification:
72356
Abstract:
This invention is a system for enhancing the performance of a forging press by increasing the size of the workpiece which can be effectively forged within the capacity of the forging press. The system includes the provision of a die set in which one or more of the dies is segmented, that is divided into two or more, and preferably three or more parts. The segmented die is provided with advancement means which allow each of the segments to be selectively advanced ahead of the other segments along the forging axis. The dies are installed in the forging press by mounting each die directly or indirectly to a respective die bed. In advancement means is employed to cause one of the segments to advance and be locked ahead of another segment. The workpiece is forged so that the advanced segment is a primary forging agent, that is, it transfers the vast majority of the force to the workpiece. The non-advanced segments are secondary forging agents, that is, they act only to control the reaction of other portions of the workpiece.
Stepped, Segmented, Closed-Die Forging
US Patent:
5950481, Sep 14, 1999
Filed:
Jan 14, 1997
Appl. No.:
8/783551
Inventors:
John M. Sarkisian - Northboro MA
John R. Palitsch - Shrewsbury MA
Joseph J. Zecco - Shrewsbury MA
John R. Palitsch - Shrewsbury MA
Joseph J. Zecco - Shrewsbury MA
Assignee:
Wyman-Gordon Company, Inc. - North Grafton MA
International Classification:
B21J 502
US Classification:
72377
Abstract:
This invention is a system for enhancing the performance of a forging press by increasing the size of the workpiece which can be effectively forged within the capacity of the forging press. The system includes the provision of a die set in which one or more of the dies is segmented, that is divided into two or more, and preferably three or more parts. The segmented die is provided with advancement means which allow each of the segments to be selectively advanced ahead of the other segments along the forging axis. The dies are installed in the forging press by mounting each die directly or indirectly to a respective die bed. In advancement means is employed to cause one of the segments to advance and be locked ahead of another segment. The workpiece is forged so that the advanced segment is a primary forging agent, that is, it transfers the vast majority of the force to the workpiece. The non-advanced segments are secondary forging agents, that is, they act only to control the reaction of other portions of the workpiece.
Stepped Segmented, Closed-Die Forging
US Patent:
5592847, Jan 14, 1997
Filed:
Jun 6, 1995
Appl. No.:
8/467159
Inventors:
John M. Sarkisian - Northboro MA
John R. Palitsch - Shrewsbury MA
Joseph J. Zecco - Shrewsbury MA
John R. Palitsch - Shrewsbury MA
Joseph J. Zecco - Shrewsbury MA
Assignee:
Wyman-Gordon Company - N. Grafton MA
International Classification:
B21J 1302
US Classification:
72356
Abstract:
This invention is a system for enhancing the performance of a forging press by increasing the size of the workpiece which can be effectively forged within the capacity of the forging press. The system includes the provision of a die set in which one or more of the dies is segmented, that is divided into two or more, and preferably three or more parts. The segmented die is provided with advancement means which allow each of the segments to be selectively advanced ahead of the other segments along the forging axis. The dies are installed in the forging press by mounting each die directly or indirectly to a respective die bed. In advancement means is employed to cause one of the segments to advance and be locked ahead of another segment. The workpiece is forged so that the advanced segment is a primary forging agent, that is, it transfers the vast majority of the force to the workpiece. The non-advanced segments are secondary forging agents, that is, they act only to control the reaction of other portions of the workpiece.