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：CA1145415A

公开(公告)日：1983-04-26

申请号：CA353220

申请日：1980-06-02

Applicant: UNITED TECHNOLOGIES CORP

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

IPC: B23K15/00 ,  H01J37/30

Abstract: BACKER FOR ELECTRON BEAM HOLE DRILLING Disclosed is an electron beam hole drilling process in which the workpiece surface where the hole exits is covered with a backer comprising particulate bonded to itself and the exit surface by a binding agent. The backer enables a hole having substantial uniform symmetry along its length to be drilled and is particularly useful for hollow parts and contoured surfaces. Backers removable by liquifying, melting, dissolution, leaching and the like, are particularly useful for inaccessible exit surfaces. In a preferred embodiment the backer is comprised of a nonmetallic particulate such as glass while the binder is a soluble silicate. EH-6196A

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：BR8003161A

公开(公告)日：1982-01-19

申请号：BR8003161

申请日：1980-05-20

Applicant: UNITED TECHNOLOGIES CORP

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

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：CA1235272A

公开(公告)日：1988-04-19

申请号：CA457905

申请日：1984-06-29

Applicant: UNITED TECHNOLOGIES CORP

Inventor： HOWARD CURTISS G ,  JORDAN LESTER W ,  YAWORSKY CHESTER E ,  ZAMPINO FRANK L

IPC: B32B15/08

Abstract: Method and Apparatus for Applying a Polymer Layer to a Metal Sheet Disclosed is a method and fixture for applying a thin layer of polymer material (26) to a piece of wavy sheet metal (24)(34). The sheet (34) is drawn to the smooth surface (42) of a fixture using a vacuum, and polymer (49) is flowed across the surface (51) using a curved leveling board (50) which produces a generally uniform thickness polymer molding. The edges (76) of the layer are molded with a bevel edge by shaped side rails (38) to provide a relief around the edge of the layer. Thus a raised up polymer portion (68) usually occuring at the edge rail (38) location will not interfere with the precise spacing which the layer is intended to produce between the sheet and a cylindrical workpiece holder (20).

公开(公告)号：CA1120107A

公开(公告)日：1982-03-16

申请号：CA323036

申请日：1979-03-08

Applicant: UNITED TECHNOLOGIES CORP

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

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

Abstract: METHOD FOR PREVENTING BURR FORMATION DURING ELECTRON BEAM DRILLING 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. EH-6310