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We have access to the most versatile range of heating methods available in the metal-forming industry.

At Brooks Forgings, we use both traditional and modern methods to heat materials to working temperature.  The method chosen is determined by the type of material and the process that will be used to manipulate it to the desired form.  In some cases, we can design and build bespoke heating systems to accommodate special projects.

The diversification in our heating methods forms part of our ongoing contingency plan to safeguard production for our customers.  This is particularly beneficial when the availability and price of energy and fossil fuels are impacted by global events and sanctions.  For example, if the price of oil and gas increases then traditional heating furnaces can be substituted with electric induction or resistance heating systems that utilise on-site solar power and lower energy tariffs.

Brooks Forgings utilises the following range of heating processes:

Electrical Induction Heating

Induction heating is the process of utilising a material's ability to conduct electricity through electromagnetic induction. Heat is rapidly generated from the inside out by eddy currents.

As there is no external contact with the heating method, as found with oil or gas-fed furnaces, induction heating is prefered if material contamination is an issue.

Bar End Induction Heating
Typically used during an upset forging process where only the end of the bar is heated and formed.

Mid-point Induction Heating
Material can be passed fully through the coil to heat a midpoint. By using a bespoke coil box it is also possible to heat the material in multiple locations simultaneously along its length. This is often used for the production of components requiring multiple bends such as square back u-bolts or bespoke bracketry.

Continuous Automated Induction Heating
Commonly used during drop forging and robotic automated processes, the pre-cut raw material is loaded into a hopper feed and is passed through multiple coil boxes via a fully automated conveyor system to fully heat the workpiece. This is optimised to supply a constant flow of ready-to-form material to the operator.

  • bar end induction heating for metal forging and forming
  • material mid point induction heating for metal forging and forming
  • multiple point automated induction heating for metal forging and forming

Electrical Resistance Heating

Resistance heating is a process that uses an alternating electrical current passed between two clamped points on a conductive material.  The resistance to electrical flow generates heat.  This method is used either when heating of a very small area is required or a much longer span where the cost of a custom induction coil or traditional furnace is prohibitive.

  • resistance heating for metal forging and forming
  • resistance heating for metal forging and forming
  • resistance heating for metal forging and forming

Electrical Oven Furnaces

The use of electric ovens is often reserved for exotic materials requiring a more controlled and prolonged soak time to ensure that they are correctly heated before forming.
Much like a conventional oven, electrical heating elements surround a specially lined and sealed chamber in which the temperature can be digitally controlled.
Smaller 'open' electric ovens remain energy efficient and can be used to heat multiple bar ends, typically for upset forging processes, when required.

  • electric heating furnace for forging
  • electric heating furnace for bar end heating
  • digital furnace temperature control

Oil & Gas Furnaces

The most common method of heating raw materials is by using an oil or gas-fed furnace.  A static ‘box’ or ‘envelope’ brick furnace is commonplace alongside larger rotary furnaces that are more energy efficient with larger heating capacity.  As a way to reduce carbon footprint and cost, we have several custom-built double-sided brick furnaces that utilise the same amount of fuel as a single-sided furnace but can supply heated material to two operational workstations at a time.  Bespoke furnaces can also be built to accommodate much larger workpieces when required.

  • oil and gas heating for metal forging and forming
  • oil and gas heating for metal forging and forming
  • oil and gas heating for metal forging and forming