摘要:
A method includes forming a first pocket in a first sheet of material and a second pocket in a second sheet of material, pressing the first pocket and the second pocket together at a nonlinear interface, and welding material of the first pocket and the second pocket at the interface.
摘要:
A multi-height energy-directing device, for facilitating staged welding together of workpieces. The device includes multiple elements extending from a body, wherein the elements do not all have a same height. Each element of a first group of the elements has a first height while each element of a second group of the elements has a second height differing from the first height. The elements are configured to channel welding energy through the device in a pre-determined manner. The predetermine manner includes channeling the energy through taller, primary, elements, of said elements, in an initial stage of the welding process, while passing none through shorter, secondary, elements, of said elements, in the initial stage.
摘要:
A process, for joining workpieces using hybrid mechanical connector-resistance welding. The process in some embodiments includes introducing a conductive fluid to an interface between the workpieces. The process also includes inserting at least one mechanical conductive connector into at least one of the workpieces so that the connector reaches the interface having the conductive fluid therein. The process in some embodiments includes further applying energy for welding to the at least one mechanical conductive connector so that the energy passes, through the connector, to the conductive fluid and heat is generated in the workpieces at the interface, thereby melting the workpieces and forming a weld joint connecting the workpieces.
摘要:
A method for use in efficiently joining together multiple workpieces to inhibit establishment of weld material in unwanted areas. The method uses a hybrid shaping-and-energizing system having a shaping tool and an ultrasonic horn. The method positions the hybrid shaping-and-energizing system proximate a workpiece, uses the shaping tool to form at least one recess in the proximate workpiece, and applies weld energy to the proximate workpiece using the ultrasonic horn. The recess is formed and the weld energy applied such that molten workpiece material becomes disposed within the recess, thereby inhibiting formation of weld material in the unwanted areas.
摘要:
The present technology discloses methods for joining a first workpiece and a second workpiece through a heat stake, and products formed thereby. The first workpiece has an aperture configured to receive a stud positioned on a second workpiece. The system is formed by applying energy to the first workpiece using electrodes, which indirectly heats the stud, at least partially softening material of the stud. Pressure is then applied to the softened material of the stud, and causing the material to form according to a predetermined geometry. After pressure is released, the stud forms a stake forming an interlocked joint connecting the workpieces.
摘要:
One or more ductile metal inserts may be selectively incorporated into articles of limited ductility, including metal castings and molded polymers. The inserts are positioned at joint locations for joining of the article to other articles using self-piercing riveting (SPR). The inserts are of suitable ductility, thickness and strength to receive and retain self-piercing rivets and enable a strong riveted joint between the article and a second article. In an embodiment the articles are magnesium alloy castings formed by any of sand casting, die casting and semi-solid metal casting. The chemical composition of the insert may be informed by the anticipated corrosive environment of the joint and the casting temperature of the magnesium alloy. For magnesium alloy castings which may be exposed to corrosive environments, aluminum alloy inserts are preferred.
摘要:
Systems and method are provided for joining components. A pin may have a head, and a stem extending from the head. The stem may have a tapered section. A collar may have a shank with a through-hole. Another tapered section may be formed by the shank so that a tapered surface of the tapered section faces into the through-hole. The pin and the collar may be configured so that the stem is received in the through-hole. The tapered sections mate together, and the tapered surface contacts the tapered section of the stem.
摘要:
The present disclosure relates to methods by which a warped workpiece is reconfigured in a pre-determined manner to reduce a separation between the warped workpiece and a joining workpiece. The warped workpiece is reformed/reshaped, prior to joining, by softening material of the warped workpiece through application of a predetermined amount of energy at or near warping and using a directional force applied to a first surface of the warped workpiece, thus reducing a separation space at a joining interface of the warped workpiece and joining workpiece.
摘要:
A process, for locating a welding energy director, for effective welding together of multiple workpieces at an area of the director. The director includes positioning a workpiece arrangement in preparation to make approaches, for locating the director, wherein the workpiece arrangement includes a proximate workpiece of the multiple workpieces, a distal workpiece, and the welding director positioned therebetween. The process also includes performing a sub-routine comprising moving a locating implement toward the proximate workpiece. The routine also includes determining whether a push-back force, being received at the locating implement from the workpiece, indicates that the locating implement has been lowered to a local terminal point. The routine includes relocating, in response to a negative result, the implement for repeating until a positive result, and determining, in response to the positive results in the location determination, that the director is located directly beneath an area corresponding to the positive result.