摘要:
A joint element made of fiber-reinforced plastic having at least three tubular and/or profile-shaped connection regions. The joint element has at least one V-shaped or U-shaped rigid wall element, which is arranged between two connection regions and is connected to the fiber-reinforced plastic.
摘要:
A method for assembling a fiber-reinforced composite structure by connecting fiber-reinforced composite members to additional members, comprising the steps of providing at least one of said fiber-reinforced composite members with projections having information concerning the identification and connecting positions of said additional members, to which said fiber-reinforced composite member is to be connected, and positioning said additional members to said fiber-reinforced composite member using said projections.
摘要:
A method for connecting a surface-structured workpiece (SSW) and a plastic workpiece using a joining tool with a sonotrode. The method includes: positioning the SSW and the plastic workpiece on an anvil such that a structured contact surface section (SCSS) of the SSW faces a contact surface of the plastic workpiece; positioning the sonotrode in contact with an outer surface of the SSW that is opposite to the SCSS; and applying pressure to the sonotrode and/or the anvil perpendicular to the contact surface to hold the workpieces fixed between the anvil and the sonotrode and applying ultrasonic vibrations to the workpieces by the sonotrode for a predetermined period of time to induce softening of the plastic workpiece and penetrate pin-like elements of the SCSS into the plastic workpiece.
摘要:
Vibration welded joint structures, methods, and apparatus for thermoplastic members are disclosed. A welded joint structure includes first and second thermoplastic members and an interposed junction piece vibratory welded to the first and second members at respective welding surfaces. At least one of the welding surfaces partially defines an angle, in a plane normal to the interposed junction piece, between an unwelded portion of the first member and an unwelded portion of the second member. The junction piece may include surfaces for forming vibratory welded bonds with the first and second thermoplastic members and a component holder, physically coupled to those surfaces, for enabling the junction piece to hold a further component.
摘要:
A method for connecting a surface-structured workpiece (SSW) and a plastic workpiece using a joining tool with a sonotrode. The method includes: positioning the SSW and the plastic workpiece on an anvil such that a structured contact surface section (SCSS) of the SSW faces a contact surface of the plastic workpiece; positioning the sonotrode in contact with an outer surface of the SSW that is opposite to the SCSS; and applying pressure to the sonotrode and/or the anvil perpendicular to the contact surface to hold the workpieces fixed between the anvil and the sonotrode and applying ultrasonic vibrations to the workpieces by the sonotrode for a predetermined period of time to induce softening of the plastic workpiece and penetrate pin-like elements of the SCSS into the plastic workpiece.
摘要:
A plastic pallet assembly is formed from plastic lumber by melting sections of runners and cross members and contacting them to join said runners and said cross members to form a pallet. A machine having an assembly table, cross members for supporting and moving pallet runners in a vertical direction, a support table for a pallet cross member, hot plates moveable in a vertical direction and in a horizontal direction for insertion between the runners and the cross member, and a force bar moveable in a vertical direction for applying a force to the runners, hot plates and cross member. A process for producing a plastic lumber pallet in which the runners are placed on a support bar and raised in a vertical direction, a cross member is placed on a support table, hot plates are inserted between the runners and cross member, pressure is applied by means of a force bar and a portion of the runners and cross member is melted after which the hot plate is withdrawn by raising the runners and hot plate and the molten section of the runners and cross member are brought in contact to join the runners and cross member.
摘要:
A structural assembly joint including a panel comprising a core sandwiched between a pair of planar sheets. A portion of the core is absent at an edge of the panel to define a space between the sheets at the panel edge. A lug projects from a structural component to be joined to the panel. The lug is received in the space between the sheets and secured in place between the or each sheet. The lug is formed integrally with the structural component. Also provided is a method of manufacturing such a structural assembly joint.
摘要:
A joint element made of fiber-reinforced plastic having at least three tubular and/or profile-shaped connection regions. The joint element has at least one V-shaped or U-shaped rigid wall element, which is arranged between two connection regions and is connected to the fiber-reinforced plastic.
摘要:
Beams or girders composed of fiber-reinforced polymers or plastics can be adhesively bonded into structural members by means of an interconnecting joint of such material having an arch structure which is positioned and arranged so that it provides a flexibility that tends to reduce peel failures of the adhesive bonds between the joint and beams or girders.