Flow drill screw

Get Instant Quality Info Now! Specifically designed for drilling in aluminium with a 1degree counter sink. The female metric threa formed without producing chips during fastening, is true to gauge and for that reason a common metric screw can be used in case of repairs.

A friction-drilling, or flow -drilling, screw is a self-piercing and extruding fastener for joining layers of sheet metal. Combining the properties of friction drilling and thread forming, the screw acts as both a fastener and a drilling-and-tapping tool. Slow process time: to seconds 2. Parameter selection is challenging 3. Assembly of electric and other lightweight vehicles increasingly requires joining of new materials, more complex structures and mixed compounds.

An effective solution is flow drill fastening, a method suitable for multiple layers of similar and mixed materials, steel and aluminum. A Flowdrill is a solid carbide drilling tool, which is capable of locally displacing material in order to form increased material thickness. This increased thickness allows for a stronger fastening connection by tapping, brazing or welding.

Lap-shear specimens with FDS joints were tested under cyclic loading conditions. This technology offers multi-material joining with single-sided access, using a fastener as both drill and joining element. Flow drill fastening is an answer to these challenges. The fastener is rotated at high speed and pressure to warm up the material.

The process is also called thermal drilling, friction drilling, form drilling, or friction stir drilling. With this type of bolt there no need to pre- drill the hole. Flowdrill is available in many sizes, suitable to drill holes from 1mm to 40mm with material thicknesses from 0. Flowdrill can be used in steel, stainless steel, aluminium, copper and some types of brass.

A flow drill screw can retain a structure and includes a shank extending along a longitudinal axis. The shank includes a first shank end and a second shank end opposite the first shank end. The flow drill screw further includes a pointed tip coupled to the first shank end.

The pointed tip includes at least one facet. New Technology screws for assembly into thin metal sheets with no holes. Using a combination of end-load pressure and screw driver spee the fastener melts through the materials. Cost Savings by using this fastener can be realized and provides alternate methods of automotive car assembly.

Robotic insertion is the assembly method of choice. Joining with flow - drill screws (FDS) is a technology which may be used to join a variety of dissimilar materials, and is increasingly used to join aluminium parts in the load bearing structure of cars. By this technique sheets, extrusions, castings or combinations of these may be joined with a high strength steel screw. A special screw, known as hole forming and self-tapping screw, is used in this process as both fastener and tool. The socket serves as a means of removing and installing Flow Drill bolts.

Drill at least 2 and preferably 5 pieces from each manufacturing lot in the test plate, but do not seat them. Flow - drill screws (FDS) are commonly used to join parts of dissimilar materials in the load-bearing structure of cars. Since connections play important roles for the crashworthiness of vehicles, knowledge about their physical behaviour under impact loadings is important for design decisions.

The friction drilling, thread forming process, hereto referred to as “FDS” is an automated continuous process that allows multi-material joining by utilizing a screw as both the tool and the. Two or more panels or parts may be joined by aligning a flow drill screw with voids formed by indentations that are formed by embossing one or more panels. A special screw , known as hole forming and self-tapping screw , is used in this process as both fastener and tool. A method of reducing the cycle time required for flow-drill screw operations by providing a dimple on a part that is engaged by a flow-drill screw.

A tip of the flow-drill screw engages a contact band at a location spaced from the tip of the distal end of the flow-drill screw and base portion of the dimple. Only have one-sided access? Our K- Flow product line provides flow drill screws in those situations where access is limited.

This technique utilizes a fastener as both drill and joining element – an efficient and flexible joining technology.