FORMDRILL - UNIMEX NV

Scheepvaartkaai 3, 3500 Hasselt
Belgium
Telephone +32 11 247740
Fax +32 11 247741
info@formdrill.com

Location

  •   Hall 6 / D23

Our range of products

Product categories

  • 03  Tools, auxiliary materials and agents for the manufacturing and processing of metallic tubes and pipes
  • 03.01  Tools
  • 03.01.03  Forming tools and mandrels

Our products

Product category: Forming tools and mandrels

What is Formdrill....

Thermal drilling is a process that uses friction to produce bushings in metal tubing and flat stock.

The combined rotational and downward force of our special Thermal Drilling tool bit creates frictional heat. Temperatures can reach 900 C for the tool, and 700 C for the work piece.
The material is transformed into a "super-plastic" state, allowing the tool to displace material and form a bushing. The height of the bushing is roughly 3 to 4 times the original metal thickness. See picture

These bushings are ideal for threaded applications, as the number and strength of threads is significantly increased. It is an excellent alternative to weld nuts or threaded inserts. The bushing can also be used as a support hole for welded, soldered or brazed connections as well as for a load-bearing surface.

The Thermal Drilling System can be used in most ferrous and non-ferrous metals including mild steel, stainless steel, copper, brass and aluminium, with material thickness up to 12 mm. In general, all malleable materials can be thermal drilled. Standard drills are available in any size up to 25.4 mm. diameter. Larger drill sizes are available on request.

No special equipment is required. A standard drill press, milling machine or CNC machining center is suitable. Thermal Drilling is also ideal for automation because it is a chipless process, produces accurate holes, and has a long tool life.

Thermal Drilling is also well suited for short run or prototype work because of its ease of use.

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Product category: Forming tools and mandrels

FDMC3

Formdrill toolholder with cooling fan.Prevents the heat from traveling through the machine spindle.

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Product category: Forming tools and mandrels

What is formtapping....

For many engineers, the concept of "Form" tapping or cold forming can be a stumbling block in itself, simply because it is an entirely unfamiliar way of producing a thread. 

Forming taps however provide multiple advantages. For ductile work materials, thread forming can provide better size control and stronger threads while improving tool life and productivity.


Unlike thread cutting, no material is removed during thread forming. Rather, the process displaces the material to generate the thread form. See drawing 

Since the metal's structure is cold worked along the thread profile, the threads produced are generally stronger and have a smooth, burnished surface finish. Cold forming taps can be operated at higher speeds and feeds than conventional taps. See video

Cold forming technology has been used to produce threads for more than 100 years. Tap designs have changed considerably in that time. This combined with the newest coatings guarantees a very long tool life in most applications. 

Forming taps must be applied in materials that cold form well. This includes steels, stainless steels, light metals, light metal alloys and other materials with tensile strength to 1200 N/mm². Generally, materials that produce a continuous chip when drilling are good candidates for thread forming. 

In combination with Formdrill, thread forming will boost quality and throughput.

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About us

Company details

One of the major problems in manufacturing engineering is how to join sheet metal, tubing or thin walled profiles in a simple, efficient and cost-effective way. Many different solutions are available such as weld nuts and threaded inserts, which are used to increase the number of threads.

The drawbacks to these techniques are: material removal, more production steps, adding external elements, costs, quality, ....
The Thermal Drilling System produces a bushing formed from the parent material itself. This bushing increases the area available for tapping.

So instead of cutting the wall, we use the material itself to form a stronger connection.

Advantages of the Thermal Drilling System are :
- Very fast process
- Stronger joints
- Cost effective
- No special machines needed
- Small investment
- High quality
- No additional components
- Less production steps
- Clean workspace (Chipless)

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