Artec Engineering supplies a range of companies, who are involved in supplying parts for the air conditioning, heat exchange, heat pumps and air cooling industries.
We recently received a large order for some 800mm dia. and 900mm dia. aluminium fan ring spinning’s
The part is made of 1.5mm Aluminium 1050A, which had to be annealed due to the hardness of the metal and the form of the spinning.
Step 1 – Circling
This first stage of the manufacturing process, requires a 2.5 x 1.25 sheet of 1.5mm Aluminium to be guillotined, circled and centre holed.
Our sheet metal worker starts by taking the sheet metal and guillotining in half.
They will repeat this process until they have enough material to cover the order.
Once this material is guillotined, it will then be taken to our circle shear.
The square of material is centralised onto the circle shear and is then fixed in place and a blade will cut the material to create the required diameter blank.
All excess material is then placed into the correct waste material storage bin, which is recycled.
The final stage of the process is to drill a central 8mm hole in the blank.
This 8mm ctr. hole will be used to locate the blank centrally on the spinning lathe.
Step 2 – Annealing
Once the blanks have been cut, the material is then sent off to one of our sub-contractors to be annealed.
The annealing process involves heating the material under extreme temperatures for a specific time frame before it is left to cool.
Due to the form of the spinning, the material has to be annealed to allow the material to stretch during the spinning process without cracking.
The material becomes more malleable and requires less force to be applied whilst spinning.
Step 3 – Metal Spinning
The next stage in the process is for our expert metal spinners, to calibrate the tooling onto the spinning lathe.
This process is critical to ensure that the tooling is aligned correctly and the operative can complete their visual inspect the machinery before any operation commences.
Once the tooling is set up, a blank is then located centrally onto the tool using the 8mm ctr. hole.
This ensures that the blank is central to the tool and the forming of the spinning is equal.
The blank is then clamped into place and will start spinning at the required resolution.
A hand tool is used to apply pressure to the material, which then starts to form the require shape.
Once the form is spun, the edge of the material is ‘skimmed’ , which is when a blade is used to remove any excess material to ensure that the spinning is at the correct height.
Step 4 – Removing the centre
This particular spinning has the form of a ring, so the centre of the spinning is removed.
Again, the operative will take a blade to cut the material and this will remove the centre of the spinning.
The spinning is then removed from the tooling and the edge of the spinning is deburred by hand.
Get in touch
If you have a protype that your are looking to have manufactured or high volume repeat batches, then get in touch today to see how Artec Engineering Precision Metal Spinners can assist you
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