Abstract: A stud for fastening an attachment element to an underlying surface is provided, having a shank that defines a fastening direction, having a sealing element for sealing off a contact zone between the shank and the underlying surface, and having a force transmission element for transmitting compressive forces from the attachment element to the underlying surface.

Abstract: Disclosed are a fastening system and a method for fastening a fastening element made of a first material to a substrate made of a substrate material. A blind hole is made in the substrate, and a fastening element is anchored in the blind hole. A shaft of the fastening element defines a fastening direction and has a circumferential surface which is slanted or stepped in relation to the fastening direction.

Abstract: An apparatus for welding a welding stud to a specified location of a base material, comprising a stud holder, comprising an inert gas cover, which surrounds the stud holder while forming a gap between the stud holder and the inert gas cover, and comprising a projection device, which is intended to project a visual pattern onto the base material through the gap.

Abstract: A welding gun for welding a welding stud to a substrate in a welding direction is provided, comprising a holding device for holding the welding stud during a welding operation, wherein the welding stud has a contact surface which is intended to contact the substrate before and/or during the welding operation, further comprising a stud lifting device for conveying the holding device against the welding direction to an immersing start position, further comprising a stud immersing device for conveying the holding device from the immersing start position in the welding direction, further comprising a bearing element having a bearing surface for supporting the welding gun on the substrate, and further comprising a device for automatically adapting the immersing start position relative to the bearing surface in the welding direction.

Abstract: A device and method for welding a welding stud to a base material are provided. A welding current is applied to a welding stud between the welding stud and the base material, wherein a material of the welding stud and the base material is partially liquefied. The welding stud is then immersed into the solidifying material of the welding stud or the base material in order to create a bond between the welding stud and the base material.

Abstract: A device and method for welding a welding stud to a base is provided. A welding current is applied to a welding stud between the welding stud and the base material, wherein a material of the welding stud and the base material is partially liquefied. The welding stud is then immersed into the solidifying material of the welding stud or the base material in order to create a bond between the welding stud and the base material.

Abstract: Disclosed is an apparatus for welding a weld stud to a substrate, comprising a welding gun which includes a casing and a stud holder for the weld stud, further comprising a gas container and a gas line for conducting gas from the gas container to the stud holder, the gas container being supported by the welding gun.

Abstract: A device for fastening a first object to a second object in a fastening direction is provided, the device comprising an anchoring element, a tension element and a prestressing element, wherein the anchoring element is provided to be anchored in a fastening direction in the second object, wherein the tension element is provided to transmit a tensile force from the anchoring element to the prestressing element to prestress the prestressing element in the fastening direction against the first object, and wherein the tension element comprises a composite of a plurality of fibers.

Abstract: An apparatus for welding a welding stud to a specified location of a base material, comprising a stud holder, comprising an inert gas cover, which surrounds the stud holder while forming a gap between the stud holder and the inert gas cover, and comprising a projection device, which is intended to project a visual pattern onto the base material through the gap.

Abstract: A fastening system for welding a welding stud in a welding direction to a substrate is provided, comprising a welding gun, which defines the welding direction, and the welding stud, wherein the welding gun has a holding device for holding the welding stud during a welding process and an outer contour, wherein the welding stud comprises a contact surface, which is provided for making contact with the substrate before and/or during the welding process, and wherein, starting from the contact surface, a tangent can be applied to the outer contour, which encloses an angle of less than 60° with the welding direction when the welding stud is held by the holding device and the contact surface is in contact with the substrate.

Abstract: A welding gun for welding a welding stud to a substrate in a welding direction is provided, comprising a holding device for holding the welding stud during a welding operation, wherein the welding stud has a contact surface which is intended to contact the substrate before and/or during the welding operation, further comprising a stud lifting device for conveying the holding device against the welding direction to an immersing start position, further comprising a stud immersing device for conveying the holding device from the immersing start position in the welding direction, further comprising a bearing element having a bearing surface for supporting the welding gun on the substrate, and further comprising a device for automatically adapting the immersing start position relative to the bearing surface in the welding direction.

Abstract: A method is provided for fastening a stud to a substrate having a surface layer, in which a recess is created in the substrate, the stud is connected to the substrate in the recess, and the recess around the stud is covered.

Abstract: A device and method for welding a welding stud to a base is provided. A welding current is applied to a welding stud between the welding stud and the base material, wherein a material of the welding stud and the base material is partially liquefied. The welding stud is then immersed into the solidifying material of the welding stud or the base material in order to create a bond between the welding stud and the base material.

Abstract: A device and method for welding a welding stud to a base material is provided. A welding current is applied to a welding stud between the welding stud and the base material, wherein a material of the welding stud and the base material is partially liquefied.

Abstract: A device and method for welding a welding stud to a base material are provided. A welding current is applied to a welding stud between the welding stud and the base material, wherein a material of the welding stud and the base material is partially liquefied. The welding stud is then immersed into the solidifying material of the welding stud or the base material in order to create a bond between the welding stud and the base material.

Abstract: A device and a method for welding a welding stud to a base material are disclosed. A welding current is applied to a welding stud between the welding stud and the base material, whereby a material of the welding stud and the base material is partially liquefied. The welding stud is then immersed into the solidifying material of the welding stud or the base material in order to create a bond between the welding stud and the base material.

Abstract: Disclosed is an apparatus for welding a weld stud to a substrate, comprising a welding gun which includes a casing and a stud holder for the weld stud, further comprising a gas container and a gas line for conducting gas from the gas container to the stud holder, the gas container being supported by the welding gun.

Abstract: A stud for fastening an attachment element to an underlying surface is provided, having a shank that defines a fastening direction, having a sealing element for sealing off a contact zone between the shank and the underlying surface, and having a force transmission element for transmitting compressive forces from the attachment element to the underlying surface.

Abstract: A device for welding a welding stud to a substrate is provided, the device including a welding gun comprising a housing and a stud holder for the welding stud, a welding unit, a first electrical cable for conducting welding current from the welding unit to the welding gun, a second electrical cable for conducting the welding current from the substrate to the welding device, a gas container, and a gas line for conducting gas from the gas container to the stud holder, wherein the gas container is carried by the welding device.

Abstract: A fastening element for fastening a layer-type component, in particular an insulation, to a setting object, in particular to a wall or ceiling of a building, having a setting element, in particular a nail or a screw, the fastening element comprising: a shaft, an opening for receiving the setting element, a stop for positively fastening the setting element, and a terminating element for bearing on an outer side of the layer-type component, wherein the shaft and the terminating element are formed in one piece, it is intended for an insulation as a layer-type component to be able to be fastened to the wall or ceiling as setting object with little work effort even if cracking should occur in the fastening element. This object is achieved in that the shaft comprises at least two segments and an intermediate opening is respectively formed between the at least two segments.