Tungsten Carbide Flowdrill Thermal Friction Drilling Kits

Tungsten Carbide Flowdrill Thermal Friction Drilling Kits,Alloy fluid stretch extrusion drill

Round head,Flat Head Solid carbide drill,hot melt drill bit

Flowdrill Thermal Friction Drilling Kits make drilling and tapping holes in thin metals fast, accurate and inexpensive. If you have ever struggled with a spinning nut-sert or welded on a pipe bung to a thin exhaust pipe, you won't believe how much easier this process can be! Our Starter Kits have everything you need to get you going.

Individual Flowdrill Bits are available in Standard or Flat below. A standard bit leaves a raised collar at the top of the hole which is desirable for tubing applications. Flat bits incorporate a cutting surface when a flush mounting surface is required.

The hot melt drill is a tapered tool made of special tungsten carbide. It uses high speed rotation and high axial pressure to generate a large amount of frictional heat on a thin tube or plate, where the material at the point of processing is in a "super plastic" state and the tool displaces and shapes this part of the material to form a bushing. The height of the bushing can be 3-4 times the thickness of the original workpiece.

Hot melt drill is widely used in automobiles, motorcycles, construction, decoration, machine tools, machinery, aerospace electronics, electrical appliances, furniture, waterways, shipbuilding and automation equipment and other aspects.

Use examples of hot melt drill bit(For 2mm low carbon steel)

Classification of hot melt drill:

1.According to the surface requirements of the workpiece, the hot melt drill bit can be divided into round hot melt drill and flat hot melt drill.

Round hot melt drill: 

The hot melt drill penetrates the workpiece and forms a convex ring on the surface of the workpiece while stretching the forming bushing. This boss is suitable for screw seal or nut washer.

Flat hot melt drill

The middle step of the hot melt bit is grinded with the cutting edge of a milling cutter. When the hot melt drill penetrates the workpiece to form a bushing, the convex ring of the workpiece surface is cut off (milling and chamfering), so that the surface of
the workpiece is smooth.

2. According to the thickness of the workpiece, hot melt drill is divided into short hot melt drill and long hot melt drill.

Short drill: Used for commonly use thin-walled parts. Suitable for penetrating workpiece thicknesses of 0.8mm-3mm. The cylindrical part of the drill is short, and the hole after extrusion into a conical shape can make the tapping strength stronger.

Longer drill: Used for thicker workpieces or when straight holes need to be processed. It is suitable for tapping workpieces with a thickness of 3-12mm. The cylindrical part of the drill bit is longer and the hole formed after extrusion is longer.