公开(公告)号：JP2000161079A

公开(公告)日：2000-06-13

申请号：JP33135099

申请日：1999-11-22

Applicant: UNITED TECHNOLOGIES CORP

Inventor： REED GORDON M ,  BOUCHER KENNETH M ,  FUNK STANLEY J ,  JAMES F DORAN ,  WILLIAM A NEHEZU JR ,  JORDAN CHRISTOPHER P ,  LAMM FOSTER P ,  JOHN H VONTERU ,  JOSEPH BACK ,  WHITTON JAMES

IPC: F01D5/18 ,  B23K26/18 ,  B23K26/38 ,  F02C7/00

Abstract: PROBLEM TO BE SOLVED: To provide laser cutoff material suitable for mass production and relatively easily removable without repeating work taking time and without forming a noxious fluid. SOLUTION: A fixture 56 for arranging laser cutoff material at an airfoil 10 comprises a sprue plate 62. The sprue plate 62 applies force to one end of the airfoil 10 to press the other end of the airfoil 10 to the face of relatively soft material so as to support and arrange a blade in the span direction. The sprue plate 62 comprises a passage 65 for receiving pressurized cutoff material and discharging the cutoff material into the airfoil 10.

公开(公告)号：JP2000159939A

公开(公告)日：2000-06-13

申请号：JP33135399

申请日：1999-11-22

Applicant: UNITED TECHNOLOGIES CORP

Inventor： LAMM FOSTER P ,  JOHN H VONTERU ,  JOSEPH BACK ,  WHITTON JAMES ,  REED GORDON M ,  BOUCHER KENNETH M ,  FUNK STANLEY J ,  JAMES F DORAN ,  NEHEZ WILLIAM A SR ,  JORDAN CHRISTOPHER P

IPC: B23K26/00 ,  B23K26/18 ,  B23K26/38 ,  C08L23/00 ,  C08L23/02 ,  F01D5/18 ,  F02C7/00

Abstract: PROBLEM TO BE SOLVED: To obtain a barrier material suitable for mass production and relatively readily removable without forming a noxious fluid and without repeating operations requiring much time. SOLUTION: This barrier material 52 for reducing the intensity of a laser beam L in a laser mechanical treatment contains a thermoplastic polymer which is formed of only carbon and hydrogen, has >=30 melt flow index and is partially crystalline so as to have >40% crystallinity so that the radiation beam of the laser beam L is diffused. The barrier material 52 has elastic characteristics and deforms according to the load as the material expands when undergoing a burnout treatment and is capable of making a stress escape so as not to transmit all the force by the thermal expansion of the material to an air foil 10.

公开(公告)号：JP2000158167A

公开(公告)日：2000-06-13

申请号：JP33134999

申请日：1999-11-22

Applicant: UNITED TECHNOLOGIES CORP

Inventor： REED GORDON M ,  BOUCHER KENNETH M ,  FUNK STANLEY J ,  JAMES F DORAN ,  LAMM FOSTER P ,  JOHN H VONTERU ,  JOSEPH BACK ,  WHITTON JAMES ,  WILLIAM A NEHEZU JR ,  JORDAN CHRISTOPHER P

IPC: B23K26/00 ,  B23K26/18 ,  B23K26/38 ,  B23K101/04 ,  F01D5/18 ,  F02C7/00

Abstract: PROBLEM TO BE SOLVED: To provide a method for arranging a laser prevention material inside an aerofoil having cooling holes easily. SOLUTION: An insertion material 74 of a laser prevention material having a shear-viscosity property bigger than 0 is formed, and arranged in a chamber 72 equipped with a nozzle. Furthermore, one part of the material is inserted in the nozzle from the chamber 72 so that shear-viscosity occurs to at least one part of the material before the material flows in the aerofoil 10. Also, energy is applied to the material so that the material temperature is raised higher than its melting point before the material flows into the aerofoil 10. A laser prevention material is pressurized under such a presser that additive shear-viscosity occurs when the material flow through a passage having a water diameter smaller than 40 mills (1 mm).