For roll tapping, or cold forming tapping, a different core diameter is used. This is because with roll tapping, the thread is not cut but cold-formed.
A friction drill is made from a composite Tungsten Carbide powder. The shape of the friction drill is then pressed, and the form is sintered into a semi-finished product. This semi-finished product is processed into a final product in our factory in the Netherlands.
After friction drilling, we recommend using a cold forming tap. Cold forming tapping, or roll tapping, deforms the material instead of cutting it. This provides several advantages such as chipless operation, improved productivity, and high thread strength. With cold forming tapping, the structural dimensional stability of the thread is enhanced.
A friction drill connection from Flowdrill is known for its strength, depending on the material used. In general, a friction drill connection is stronger than alternatives such as clinch nuts or flange nuts. For example, a friction drill connection can effortlessly withstand a force of 2.7 tons in 2.0-millimeter-thick steel. This means it is stronger than an 8.8-grade bolt connection.
Depending on the diameter, it is possible to perform friction drilling up to a thickness of 0.5 to 10 millimeters, based on ST235 mild steel. Note: the larger the diameter of the friction drill, the more power is required from the machine. If you want to know more about the possibilities of friction drilling on different metals, contact us.
For larger and automated productions, we offer an automated lubrication system. This system eliminates the manual application of paste or oil during friction drilling and tapping.
FDKS Paste is essential for successful friction drilling. FDKS Paste is a high-quality heat-resistant paste that plays a crucial role in optimizing the performance and lifespan of your friction drill by preventing material buildup. It is recommended to apply this paste with the included brush every 5 holes.
Similar to FDKS Paste in friction drilling, tapping oil should be applied approximately every 5 holes using the provided brush. The oil ensures optimal lubrication during cold forming tapping, increasing thread strength.
Yes, Flowdrill is known for the service and quality it provides. We not only sell a friction drill but also ensure, through our technical knowledge, that you achieve optimal results for your project or product. If you have a project that doesn't align with one of our standard friction drills, we can create a custom friction drill, a special, for you. Over the years, we have created more than 500 specials. We're only finished when you're satisfied.
If you want to perform friction drilling, for example, on a tube with a small diameter, and you don't want the bushing on the inside of the profile to be too long, there is a handy solution. By using a pilot hole, you can ensure that the length of the bushing becomes shorter. This way, you maintain enough space on the inside of your profile.
When adding friction drilling to your production process, it is essential to know that, in addition to the friction drill itself, some other accessories are crucial to achieve optimal results. Moreover, Flowdrill accessories significantly extend the lifespan of your friction drill and improve the quality of your friction-drilled hole.
For your convenience, we have compiled a complete Starter Set, packaged in a distinctive red case. This set includes everything you need to start friction drilling right away. The starter set can be used for a CNC machine, tube laser, or pillar drill.
Yes, that is possible. This is known as a "Flat Finish" or a collarless finish. A flat finish offers several advantages over a standard friction-drilled hole. Thanks to the flat finish, you can seamlessly align the adjacent material with the surface of the material, known as "flush." A Flat Finish is often used in the furniture industry to guarantee a clean and neat appearance.
Yes, friction drilling is a proven technology with a long history of success. The development of the first friction drilling machine began after World War II, and since then, Flowdrill has further refined and improved this technology. Today, friction drilling is used daily by thousands of customers worldwide as a reliable alternative to blind rivet nuts, weld nuts, and clinch nuts. Flowdrill also possesses a certified machine to determine the pull-out forces and maximum load and momentum in different materials, ensuring the quality and performance of our friction drills.
Depending on the location of your project, you have the option to order a Flowdrill friction drill directly from Flowdrill or from one of our respected partners. For more details and a comprehensive description of our partners, check our dealer page.
Friction drilling is essentially suitable for all metals that are malleable and not brittle. This means that approximately 99% of the common materials in the metal processing industry are suitable for friction drilling. For a complete list of metals that are suitable (and some that are not), click here for more information.
This means that with friction drilling, you can produce faster, and your "time to market" is shortened significantly.
Friction drilling offers several advantages over rivet nuts, weld nuts, and press nuts. To simplify, here’s a list.
Friction drilling is a chipless drilling process in which, through the generation of frictional heat, it is possible to create a hole in a profile or material without producing chips. The specially ground geometry of the Flowdrill friction drill gradually displaces the metal, resulting in a friction-drilled hole accompanied by a distinctive collar.
Friction drilling relies on local frictional heat generated by the unique vertical movement of the friction drill to form a hole in the material. With a Flowdrill Flowtap, you can then create threads (cold forming) in the friction-drilled hole; the friction drill connection serves as a robust fastening point.
CNC controlled: attempts in:
By hand similar amount of holes are accessible. Though to be taken into consideration in particular are:
Theoretically yes - however as a rule, the necessary.
Reasons for not hand drilling:
In particular as a time and cost saving alternative with at the same time higher quality in comparison, e.g. to the sweat, press and rivet joins or other cut threads.
The most varied application possibilities thereby arise in the whole metal processing industry; everywhere where sheet metals or tins are worked on and processed (see the ADS book).
Typical sectors and application examples: