FLOW DRILLING KNOWLEDGE

Since its creation, Sino Concept has been manufacturing its own street furniture and traffic safety products, gaining considerable experience between a variety of manufacturing operations in the process. One of these processes is flow drilling.

This process is useful for many products, particularly for those products that must be lightweight and portable, an area in which Sino Concept excels.


Flow drilling process at Sino Concept factory

If you are looking for a subcontractor in China, with years of experience and a strong understanding of your needs, then Sino Concept is the right company for you!

WHAT IS FLOW DRILLING?


Drilling holes in work pieces without removing materials


Flow drilling, also known as friction drilling or form drilling, is a method of drilling holes in workpieces without removing material as a traditional drill would.

HISTORY

Flow drilling was invented in 1923 by Jean-Claude de Valière. He wanted to create a tool that could drill holes in metal by friction heat. At the beginning, the expected success about this invention was not big, because the right materials were not yet available and Mr. de Valière did not discover the right shape for this kind of tool. A useful tool for flow drilling was produced during the 1980s.

HOW DOES FLOW DRILLING WORK?


Drill holes in metal by friction heat

Flow drilling is a machining process that enables manufacturers to drill most types of materials, including very solid metals. It is mainly used to drill holes in thin materials like sheet metal.

Flow drilling’s process uses the friction force to form a socket in the metal tube or flat sheet metal. The combination of the rotation speed and the axial force applied to the flow drill creates a frictional heat. The tool temperature may reach 900 ° C and the piece temperature 700 ° C. The material is processed in the form of "super-plastic", allowing the tool to displace material to form a sleeve. The height of the sleeve obtained is about 3 to 4 times the initial thickness of the material.

Flow drilling process uses the friction force to form a socket

Flow drilling does not remove any material when it creates the hole. So the drill bit can be designed to form the excess steel into a new shape. The heated metal can be formed above and below the hole to increase wall thickness or to create a collar which can then be tapped with threads.

Thanks to this collar, we are able to fix a screw into the hole in a much more secure way, as it is the case with our expanding barrier.

3 ADVANTAGES OF FRICTION DRILLING:

  • The process is very quick which makes it optimal for high volume production.

  • Drilling is possible with almost all kinds of metal like steel, stainless steel, copper, aluminium, brass, etc.

  • It does not produce any litter (clean process). No loss of material since all is reused.

FLOW DRILLING AT SINO CONCEPT


Flow drilling to create a collar


At Sino Concept we primarily use flow drilling to create a collar which we can then thread for a bolt or screw.

We chose flow drilling because of its productive advantages. Indeed, one process is enough to drill a piece and form a collar around the hole. We can flow drill all types of materials for all products such as our plastic fold-up table.

SINO CONCEPT: WE OFFER MORE THAN JUST FLOW DRILLING

Cheap Drilling
  • Unbeatable Prices: We manufacture your products at our own factories based in China. Work with us as your manufacturer and you can cut out the middleman and save money.
Custom Drilling Products
  • Custom Manufacturing: Sino Concept specializes in manufacturing custom made products. Working with Sino Concept allows you to manufacture the products you require with an experienced and professional manufacturer!
High-Quality Drilling Products
  • Quality Guarantee: We promise to deliver flawless products. To ensure this, we perform strict quality control checks throughout every stage of production.
Multilingual Product Service
  • We speak your Language: The language barrier can be a problem when working with Chinese companies but with Sino Concept you will be working with a team of European experts based in China. Breaking down the language barrier means that we are able to manufacture what you need and we can give you feedback at every stage of your order.
High Class Finishing
  • From Raw Material to Finishing: To ensure our customers get the quality that they demand, we offer a range of in-house finishing treatments including powder coating, hot-dip galvanizing, e-coating and many more.




DISCOVER:


Casting manufacturing

CASTING

Machining manufacturing

MACHINING

Turning manufacturing

TURNING

Milling manufacturing

MILLING

Stamping and punching manufacturing

STAMPING AND PUNCHING

Welding manufacturing

WELDING

Vulcanized rubber manufacturing

VULCANIZED RUBBER

Do you wish to get more information?

Contact us: contact@sinoconcept.com

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