摘要:
A process for producing a body for exhaust gas treatment having a plurality of metallic layers, includes bringing the layers into contact with each other in a connection region. A connection is made by a roller seam welding process in such a way that the layers form passages through which a gas stream can flow. A corresponding body for exhaust gas treatment can especially be used as a filter or catalyst carrier body in the automobile industry.
摘要:
A relatively simple and inexpensive apparatus and method for providing high quality and aesthetically pleasing continuous resistance welded hollow metal articles at constant speed comprises an article workpiece conveying guide means for guiding the article workpiece through a welding means under controlled, stable, vibration free conditions in a predetermined path. The path has linear and non-linear portions. A sensor interactively connected to a programmable controller which functions to move the workpiece quickly and accurately through the welding means under stable conditions at a high uniform rate of speed. A first guide provides a weld edge reference guide, and a simple pivotal tracking system provides a weld path guide during non-linear travel of the workpiece. The tracking system exerts its force on the workpiece generally through the center of percussion of the article workpiece whereby no vibration is imparted by the force to the workpiece.
摘要:
A method is disclosed for inserting an end of a first tubular member into a complementary end of a second tubular member and attaching (e.g., welding) the adjacent surfaces of the inserted ends in a tight peripheral bond. In the method, a substantially continuous protrusion is formed in either the first or second member. Thereafter, the first and second tubular members are placed relative to each other such that a current may be passed through the protrusion and a seal may be formed, thereby joining the members.
摘要:
A drum brake shoe is provided by fine blanking the brake shoe web (50) so that the web (50) has radially extending weld projections (60) at a circumferential edge (52), with a radial recess (62) disposed on each side of a weld projection (60). As a brake shoe rim (40) is fed through a welding and forming mechanism (65), a flat surface (41) of the rim (40) engages a radially extending weld projection (60) and a weld is effected. Welding wheels (90, 100) of the mechanism (65) rotate to bend the rim (40) and engage the rim (40) with the next weld projection as a weld is effected between the rim (40) and web (50). The manufacturing method will provide a more consistent welding process that will result in a higher percentage of quality welds and less scrappage.
摘要:
Devices and methods are contemplated in which a first electrode is circumferentially movable about a second electrode such that a tubular work piece can be resistance welded to a second work piece. Most preferably, the first electrode is a wheel-shaped electrode, while the second electrode is static and disk-shaped.
摘要:
A process for producing a body for exhaust gas treatment having a plurality of metallic layers, includes bringing the layers into contact with each other in a connection region. A connection is made by a roller seam welding process in such a way that the layers form passages through which a gas stream can flow. A corresponding body for exhaust gas treatment can especially be used as a filter or catalyst carrier body in the automobile industry.
摘要:
A manufacturing method of a catalyst container includes forming a plate member that is partially different in plate thickness or material by joining material plates that are different in plate thickness or material by welding; bending the plate member that is partially different in plate thickness or material to form a hollow material, wherein the hollow material is formed by bending the plate member and joining opposing sides thereof by welding; and changing a sectional shape of the hollow material by a spinning process.
摘要:
Devices and methods are contemplated in which a first electrode is circumferentially movable about a second electrode such that a tubular work piece can be resistance welded to a second work piece. Most preferably, the first electrode is a wheel-shaped electrode, while the second electrode is static and disk-shaped.
摘要:
A fuel tank for a motorcycle includes a body panel, and a bottom plate. The bottom plate occludes an opening at a lower end of the panel and has an outer surface which is recessed inwards of the panel. A first junction flange portion which is integrally formed on a peripheral edge of the opening at the lower end of the body panel and a second junction flange portion which is integrally formed on an outer peripheral edge of the bottom plate, are superposed on each other and seam-welded to each other. The first and second junction flange portions are formed turned toward the center of the opening at the lower end of the body panel, so that they are not visible from the sides of the tank. Thus, the appearance of the fuel tank can be improved to enhance marketability, while enhancing the air-tightness of the tank and welding operability.
摘要:
For connecting a round hollow member (10) of sheet metal tightly to a complementary inner member (12), a force fit is produced in a narrow annular region (25) between these two members (10, 12). Then at least two electrodes (90) are applied to the hollow member (10) from the outside in the annular region and during relative rotation between the electrodes (90) on the one hand and the two members (10, 12) on the other hand, electrical resistance welding is carried out during which the welding current (I) is supplied and drawn off exclusively through the electrodes (90) bearing externally against the hollow member (10).