A method of assembling a weldment for a refuse truck loading arm includes providing a left-handed C-section and a right-handed C-section and at least one buttress, welding a first buttress into a concave end portion of the left-handed or right-handed C-section, welding a first edge of the left-handed C-section to a matching edge of the right-handed C-section, welding another matching edge of the left-handed C-section to a matching edge of the right-handed C-section, the edge welding steps defining a slot between the edges, said slot being at an end portion of said weldment, and welding a joint section into the slot, with the joint section having an inner face, bolt holes and a key recess.

A fully welded fence panel comprises a plurality of vertical pickets and a pair of horizontal metal rails. The top and bottom portions of the pickets are pressed in a mechanical or hydraulic press to create flattened surfaces and welded to the rails. The flattened surfaces may either be oriented parallel or perpendicular to the lengthwise direction of the metal rails to facilitate welding or to enable the fence panel to be racked when used as a railing. Indentations are pressed into opposite sides of the flattened surfaces at the same location and are perpendicular to the lengthwise direction of the picket to further enable the fence panel to be racked. The railing is therefore adjustable at a customer's site to change the angle between the pickets and rails and avoid the need for perfect angle measurements prior to manufacture.

A server enclosure having a plurality of panels abutted to one another and constrained by a connector having a channel and at least one aperture. Each respective panel has at least one perpendicular portion being perpendicular to a face of the respective panel and adjoining a perimeter of the respective panel. Connectivity media coincident to the aperture can affix at least two panels and a connector to one another.

The present invention relates to two-component polyurethane compositions which on the one hand have a long open time and, even after extended exposure to a climate with high atmospheric humidity (e.g., 70% relative humidity), even after 40 minutes and in particular even after 60 minutes, can still be glued and cured to form polymers having high mechanical strength. The composition comprises castor oil, at least one polyol having 5-8 hydroxyl groups, a mixture of two different polyether alcohols and/or polyester polyols on the basis of castor oil or soybean oil and at least one polyisocyanate. The two-component polyurethane compositions are suitable in particular for non-positive filling joints or gaps that are joined by large-surface area structural gluing, in particular of vane half shells of rotor blades for wind power plants.

A method of forming an injection-bonded joint may include forming a chamber wall within a bondline region between mating surfaces of a first part and a second part. The chamber wall may divide a bondline length and define at least one adhesive chamber. The method may include injecting a structural adhesive into the adhesive chamber through an injection port, and discharging excess adhesive from the adhesive chamber through a bleed hole.

A frictional weld joint couples first and second body portions of an article together. The frictional weld joint comprises a first bead extending from the first body portion of the article and a second bead extending from the second body portion of the article. The second bead has an interior stem and an exterior stem space from the interior stem defining a cavity therebetween. The first and second beads are placed in contact with each other with the centerline of the second bead offset from the centerline of the first bead. A force is applied to either the first or second body portions to generate friction between the first and second beads to plastically displace the first and second beads. The force is removed for fusing the first and second beads together to couple together the first and the second body portions of the article.

A frictional weld joint couples together first and second body portions of an article. The first body portion has a first nominal wall thickness and a first joint surface. The second body portion has a second nominal wall thickness and a second joint surface. A total bead height is defined between the joint surfaces. A first bead extends from the first joint surface defining a first bead height. A second bead extends from the second joint surface and is coupled to the first bead. A final second bead height is defined between the first bead and the second joint surface. A ratio of the first bead height to the final second bead height is of from about 0.40 to about 1.70. A ratio of the total bead height to at least one of the first and second nominal wall thicknesses is equal to or less than 6.00.