摘要:
Employing a compact molded from powder of metal or the like as an electrode 11, generating pulsed discharges between the electrode 11 and a treating portion Wa of work W in working oil L as a mixture with powder of semiconductor or conductor mixed therein, using discharge energy thereof for locally fusing surface regions of the treating portion Wa of work W, showering molten pieces of electrode material or reactants of the electrode material onto the treating portion Wa of work W, forming a covering film C on the treating portion Wa of work W.
摘要:
Employing a compact molded from powder of metal or the like as an electrode 11, generating pulsed discharges between the electrode 11 and a treating portion Wa of work W in working oil L as a mixture with powder of semiconductor or conductor mixed therein, using discharge energy thereof for locally fusing surface regions of the treating portion Wa of work W, showering molten pieces of electrode material or reactants of the electrode material onto the treating portion Wa of work W, forming a covering film C on the treating portion Wa of work W.
摘要:
Generating pulsed discharge between an end surface of an electrode and an end face portion of a metallic plate, to attrite the electrode, to form in the end surface of the electrode a recess conforming to a shape of the end face portion of the metallic plate, having the electrode making a relative movement in a direction perpendicular to a lateral side of the metallic plate, generating pulsed discharge between an internal side face of the electrode recess and a lateral face of the end face portion of the metallic plate, to form an auxiliary coat on the lateral face of the end face portion of the metallic plate, and generating pulsed discharge between a bottom face of the electrode recess and a top face of the end face portion of the metallic plate, to form a cladding layer on the end face portion of the metallic plate.
摘要:
Generating pulsed discharge between an end surface of an electrode 37 and an end face portion of a metallic plate 11, to attrite the electrode 37, to form in the end surface of the electrode 37 a recess 41 conforming to a shape of the end face portion of the metallic plate 11, having the electrode 37 making a relative movement in a direction perpendicular to a lateral side of the metallic plate 11, generating pulsed discharge between an internal side face of the recess 41 of the electrode 37 and a lateral face 11bl (11cl) or 11br (11cr) of the end face portion of the metallic plate 11, to form an auxiliary coat 43 or 45 on the lateral face 11bl (11cl) or 11br (11cr) of the end face portion of the metallic plate 11, and generating pulsed discharge between a bottom face of the recess 41 of the electrode 37 and a top face 11bu (11cu) of the end face portion of the metallic plate 11, to form a cladding layer 47 on the end face portion of the metallic plate 11.
摘要:
A forming 7 die is filled with a powder (11) of electrode material, the powder (11) of electrode material filled in the forming die is compressed to form a porous powder compact (27), the porous powder compact (27) is set in place in a chamber (25) of a heat-treating furnace (23), the chamber (25) is supplied with inert gas or hydrogen gas, and inert gas or hydrogen gas is heated by heaters (39) in the heat-treating furnace (23) and blown toward the powder compact (27), as blows circulating in the chamber (25), whereby the powder compact is heated with heat of convection flows of inert gas or hydrogen gas, or mixed gas containing inert gas as principal component and hydrogen gas, so the electrode material of the powder compact is sintered.
摘要:
A forming 7 die is filled with a powder (11) of electrode material, the powder (11) of electrode material filled in the forming die is compressed to form a porous powder compact (27), the porous powder compact (27) is set in place in a chamber (25) of a heat-treating furnace (23), the chamber (25) is supplied with inert gas or hydrogen gas, and inert gas or hydrogen gas is heated by heaters (39) in the heat-treating furnace (23) and blown toward the powder compact (27), as blows circulating in the chamber (25), whereby the powder compact is heated with heat of convection flows of inert gas or hydrogen gas, or mixed gas containing inert gas as principal component and hydrogen gas, so the electrode material of the powder compact is sintered.