摘要:
A method for making a metal reinforcement for the leading edge or trailing edge of a turbine engine blade, including: positioning a preform using an equipment positioning the preform in a position such that the preform, at one end thereof, has an area which is capable of receiving a filler metal; and, after the positioning, constructing a base for the metal reinforcement by hard-surfacing with filler metal in the area, in the form of metal beads.
摘要:
A power supply apparatus in which a battery and a circuit wiring board or boards are electrically connected by using lead terminals. The lead terminal is adapted so that thickness of a welding portion is caused to be thinner than the thickness of a conductive portion. Thus, current for welding flows to much degree in a thickness direction so that electric resistance of the welding portion becomes large, and heat based on the electric resistance also becomes large. From this fact, welding nugget can be enlarged. As the result of the fact that large welding nugget is formed, the lead terminals are welded to terminal portions of the battery with high reliability.
摘要:
The present invention is directed to a power supply apparatus in which a battery and a circuit wiring board or boards are electrically connected by using lead terminals. The lead terminal (3) is adapted so that thickness of a welding portion (3a) is caused to be thinner than the thickness of a conductive portion (3b). Thus, current for welding flows to much degree in a thickness direction so that electric resistance of the welding portion becomes large, and heat based on the electric resistance also becomes large. From this fact, welding nugget (63) can be enlarged. As the result of the fact that large welding nugget is formed, the lead terminals are welded to terminal portions (37a) of the battery (2) with high reliability.
摘要:
IMPROVED RESISTANCE WELDING DEVICE that includes a mobile electrode in a support assisted by a spring, gas cylinder or expansion element, allowing its movement on being compressed so that the time lapse for the welding is sufficiently long to be effective, without altering the movement cycle of the press into which it is installed. The support has one or several columns, the electrode being supported sliding along one and with a rod housed on the inside of a positioning device, also axially movable, into which the small parts to be welded are received through a conduit. The positioning device, made from an insulated material, preferably ceramic, has some fixing clamps for said part until the welding is made pushed by the electrode rod through a lower window.
摘要:
A method for resistance welding/brazing a tube to a container. A tube is obtained having an axially-extending first portion and a tube form which extends transversely from the first portion. A container is obtained having an orifice. A support tool is obtained with an expandable head. The tube form is positioned proximate the outer surface of the container and surrounding the orifice. The unexpanded head of the support tool is passed through the orifice of the container. The head of the support tool is expanded inside the container. The inner surface of the container is supported with the expanded head of the support tool. A resistance current path is created through the tube form and the container creating a weld/braze zone which includes at least some of the tube form and at least some of the container.
摘要:
A method and apparatus for projection welding a metal fastener (e.g., a nut) to a metal member (e.g., a sheet) is disclosed. The apparatus includes a first electrical contact and a locator assembly having a second electrical contact. For welding the fastener to the member, the locator assembly aligns through-holes of the fastener and sheet and a current is passed through protrusions of the fastener. In turn, the protrusions are softened to bond with the member.
摘要:
A technique for resistance welding an attachment such as a collar or base ring to a tank head section by causing welding current to flow through weld protrusions disposed on the attachment and which are pressed against the tank section. Electrodes are contacted to the attachment and the tank section in such a manner to provide for substantially equal welding current paths through the protrusions.
摘要:
A method for manufacturing a guide pin is disclosed, which comprises maching a metal substrate core; and depositing an insulative ceramic coating by the Bernex chemical vapor deposition process, wherein the Rockwell C hardness of the metal core is greater than or equal to about 45, and the surface roughness value of the as-deposited coating are Ra less than or equal to about 35 microinches and Rmax less than or equal to about 250 microinches.
摘要:
A terminal frame used to manufacture electronic devices, the terminal frame having a metal strip and a plurality of stick-like metal terminals. The metal terminals are joined to the metal strip by resistance welding. A manufacturing system of such terminal frames includes a device used for resistance welding, where the device has an electrode which holds each terminal at a portion near a joint portion, and a current is supplied to the terminal through the electrode.
摘要:
The invention relates to a method of securing a first part made of a thermoplastic material to a second part made of an electrically conductive material, a connector means of an electrically conductive material being placed in the part made of a thermoplastic material and subsequently being welded to the part made of an electrically conductive material. A metal ball is used for the connector, which ball is inserted into an opening in the first part and is brought into contact with the second part, after which the ball is welded to the second part by means of a welding electrode.