改良された遠心鋳造管とそれに関連する製造方法および製造装置

Japanese Patent JP4278514

B2

An improved centrifugally-cast tube is provided, along with a related method and apparatus of making the tube. The tube includes a plurality of grooves and bosses that are mechanically machined into an interior surface of the tube, such as by a broaching process. The profile of grooves and bosses may be defined by a plurality of intersecting concave and convex radii. The tube is resistant to creep, carburization and metal dusting. The tube also has an enhanced heat transfer rate, and a desirable surface roughness. A method of making the tube is also provided. The method essentially consists of mechanically deforming the interior surface of the tube by passing a series of cutting inserts on support rings having incrementally-differing dimensions over the interior surface. An apparatus is also provided which includes a telescoping shaft upon which is mounted at least one cutting tool that has a plurality of cutting inserts and is adapted to form a plurality of grooves and bosses in the interior surface of the tube. The grooves and bosses may be straight or spiraled.

WO/1980/000321	DRIVE TRAIN FOR GEAR MANUFACTURING MACHINE AND METHOD OF USE
JP2009220261	HELICAL BROACH FOR INTERNAL GEAR MACHINING, AND BROACHING METHOD
JPS53128091	METHOD OF MANUFACTURING PARTS HAVING OUTER SHAPE CONSISTING OF PLURALITY OF SIMILAR SHAPES AND MANUFACTURING DEVICE

Joel Demarest
Gilberdier

JP2003516730A

June 17, 2009

July 24, 2002

Click for automatic bibliography generation  

Manoir Industries Inc.

B23F5/28; F16L9/02; B22D13/02; B23D43/04; C10G75/00; F28F1/40

JP58132081A
JP58173022A
JP1234126A
JP4073481A
JP2000192937A
JP2000064098A
JP3184714A
JP4051321U
JP8174332A
JP4071710A
JP9070710A
JP54054386A
JP7263195A
JP2002504170A
JP55098523U

US2210848
US2315476
US3088494
US4411569
US5152646
DE1752709A1

Sakuo Yamaguchi
Yuichi Kasai
Masaharu Yokoyama

Previous Patent: 無線通信デバイスにおける永続データを更新するためのシステムおよび方�...

Next Patent: DEMAGNIFICATION PROJECTION EXPOSURE