公开(公告)号：JPS579590A

公开(公告)日：1982-01-19

申请号：JP6952380

申请日：1980-05-23

Applicant: UNITED TECHNOLOGIES CORP

Inventor： HOWARD CURTISS GILMORE ,  JORDAN LESTER W ,  YAWORSKY CHESTER E

IPC: B23K26/18 ,  B23K20060101 ,  B23K9/00 ,  B23K15/00 ,  B23K15/08 ,  B23K26/00 ,  B26F20060101 ,  B26F3/00

公开(公告)号：FR2482495A1

公开(公告)日：1981-11-20

申请号：FR8010985

申请日：1980-05-16

Applicant: UNITED TECHNOLOGIES CORP

Inventor： HOWARD CURTISS GILMORE ,  JORDAN LESTER WARREN ,  YAWORSKY CHESTER EDWIN

IPC: B23K15/08 ,  B23K26/18 ,  B23K15/00

Abstract: A support for a workpiece, in which a hole is to be machined by an energy beam, consists of grains (or particles) binded together by a binder which is evaporated by the beam and partially transforms into a liquid after machining. The grains absorb heat and vapours when contacted by the beam. The compsn. of the support is chosen to ensure absorption of the beam and creation of an amt. of gas sufficient to expel molten metal from the hole and reduce formation of burrs and resolidified layers in the hole. The support is useful in the electron beam machining of holes, slots, etc. in (non)metallic workpieces, e.g. to form a hole in one wall of a hollow gas turbine engine blade.

公开(公告)号：NO151611C

公开(公告)日：1985-05-08

申请号：NO790962

申请日：1979-03-22

Applicant: UNITED TECHNOLOGIES CORP

Inventor： HOWARD CURTISS GILMORE ,  JORDAN LESTER WARREN ,  YAWORSKY CHESTER EDWIN

IPC: B23K15/08 ,  B23K26/18 ,  B23K15/00

Abstract: Disclosed is an electron beam drilling process in which the workpiece surface first penetrated by the beam is coated with a stop-off material having the required high temperature resistance for preventing formation of burrs around the perimeter of the hole from hot molten spatter which is ejected from the entrance to the hole during the drilling operation. A preferred stop-off material is a substantially continuous layer of boron nitride on the first penetrated surface of the workpiece.

公开(公告)号：DE3019025A1

公开(公告)日：1981-11-26

申请号：DE3019025

申请日：1980-05-19

Applicant: UNITED TECHNOLOGIES CORP

Inventor： HOWARD CURTISS GILMORE ,  JORDAN LESTER WARREN ,  YAWORSKY CESTER EDWIN

IPC: B23K15/08 ,  B23K17/00 ,  B23K26/18 ,  B23K26/38 ,  B23K15/00

Abstract: A support for a workpiece, in which a hole is to be machined by an energy beam, consists of grains (or particles) binded together by a binder which is evaporated by the beam and partially transforms into a liquid after machining. The grains absorb heat and vapours when contacted by the beam. The compsn. of the support is chosen to ensure absorption of the beam and creation of an amt. of gas sufficient to expel molten metal from the hole and reduce formation of burrs and resolidified layers in the hole. The support is useful in the electron beam machining of holes, slots, etc. in (non)metallic workpieces, e.g. to form a hole in one wall of a hollow gas turbine engine blade.

公开(公告)号：DK206180A

公开(公告)日：1981-11-13

申请号：DK206180

申请日：1980-05-12

Applicant: UNITED TECHNOLOGIES CORP

Inventor： HOWARD CURTISS GILMORE ,  JORDAN LESTER W ,  YAWORSKY CHESTER E

IPC: B23K26/18 ,  B23K20060101 ,  B23K9/00 ,  B23K15/00 ,  B23K15/08 ,  B23K26/00 ,  B26F20060101 ,  B26F3/00 ,  B26F

公开(公告)号：NO790962L

公开(公告)日：1979-09-25

申请号：NO790962

申请日：1979-03-22

Applicant: UNITED TECHNOLOGIES CORP

Inventor： HOWARD CURTISS GILMORE ,  JORDAN LESTER WARREN ,  YAWORSKY CHESTER EDWIN

IPC: B23K15/08 ,  B23K26/18 ,  B23K

Abstract: Disclosed is an electron beam drilling process in which the workpiece surface first penetrated by the beam is coated with a stop-off material having the required high temperature resistance for preventing formation of burrs around the perimeter of the hole from hot molten spatter which is ejected from the entrance to the hole during the drilling operation. A preferred stop-off material is a substantially continuous layer of boron nitride on the first penetrated surface of the workpiece.

公开(公告)号：CH649486A5

公开(公告)日：1985-05-31

申请号：CH399780

申请日：1980-05-20

Applicant: UNITED TECHNOLOGIES CORP

Inventor： HOWARD CURTISS GILMORE ,  JORDAN LESTER WARREN ,  YAWORSKY CHESTER EDWIN

IPC: B23K15/08 ,  B23P15/02 ,  B26D7/20 ,  B23K15/00

公开(公告)号：NO151611B

公开(公告)日：1985-01-28

申请号：NO790962

申请日：1979-03-22

Applicant: UNITED TECHNOLOGIES CORP

Inventor： HOWARD CURTISS GILMORE ,  JORDAN LESTER WARREN ,  YAWORSKY CHESTER EDWIN

IPC: B23K15/08 ,  B23K26/18 ,  B23K15/00

Abstract: Disclosed is an electron beam drilling process in which the workpiece surface first penetrated by the beam is coated with a stop-off material having the required high temperature resistance for preventing formation of burrs around the perimeter of the hole from hot molten spatter which is ejected from the entrance to the hole during the drilling operation. A preferred stop-off material is a substantially continuous layer of boron nitride on the first penetrated surface of the workpiece.

公开(公告)号：NO801432L

公开(公告)日：1981-11-16

申请号：NO801432

申请日：1980-05-14

Applicant: UNITED TECHNOLOGIES CORP

Inventor： HOWARD CURTISS GILMORE ,  JORDAN LESTER WARREN ,  YAWORSKY CHESTER EDWIN

IPC: B23K26/18 ,  B23K20060101 ,  B23K9/00 ,  B23K15/00 ,  B23K15/08 ,  B23K26/00 ,  B26F20060101 ,  B26F3/00 ,  B23K

公开(公告)号：DE3428207A1

公开(公告)日：1986-02-06

申请号：DE3428207

申请日：1984-07-31

Applicant: UNITED TECHNOLOGIES CORP

Inventor： HOWARD CURTISS GILMORE ,  JORDAN LESTER WARREN ,  YAWORSKY CHESTER EDWIN ,  ZAMPINO FRANK LOUIS

IPC: B23K15/08 ,  H01J37/31 ,  B23K15/00 ,  H01J37/09

Abstract: During the drilling of holes of very small diameter in workpieces 24 by means of an electron-beam drilling machine, the material 40 discharged from the workpiece has a great tendency to travel back along the beam path and settle as a deposit 50 in the interior of the electron gun 22. Provision is made for the deposit to settle for the most part in a recess 54 at the margin 60 of a rotatable, inner diaphragm 44 which is arranged near the beam path inside the electron gun. The deflection angle alpha of the electron beam is accurately set so that the material discharged from the workpiece settles in the recess, from which the material is removed by means of a wiper. A nose 64 is arranged in the recess at the margin of the diaphragm and helps to remove small quantities of deposits 50 which are still adhering to the stationary parts of the electron gun near the diaphragm. In this embodiment, an elastically flexible wiper, such as, for example, a wire brush 66, is used in order to remove adhering deposits from the margin of the diaphragm.