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The inventive electronic mechanical machine-making company Nervous Squirrel instructed Laser 24 to make all the metal parts for one of their biggest sculptural projects yet – a 5.5m high geodesic chicken!
The task at hand: bespoke cut metal parts for a steel structure
The client asked us to help create a giant chicken sculpture from steel. This unique art project would require a high number of bespoke metal parts cut to very high precision, that would operate as key components to the build. The strength and thickness of the metal would also work to maintain its structure over time.
There were 17 different shapes, 556 components in total.
The metalworks included various parameters, including end caps that would work as mudguards, and triangles that would form the main sphere-shaped body of the sculpture. One piece cut wrong and no chicken would be crossing the road!
Constructing a steel dome: choosing the right metal
There were two core factors when choosing the type of metal and the actual cutting process for this project. Firstly, we needed to create the smooth surface desired to make this piece of art shine. Secondly, we had to ensure the sculpture would be durable for years to come, so we needed to produce all pieces with the least wear as possible.
We cut all parts from 2mm CR4 mild steel, processed with N2.
With CR4 mild steel, the ‘C’ stands for Cold reduced steel sheets. Making steel and sheets using this method results in a product with a smoother surface and finer finish.
N2 denotes laser cutting in nitrogen assist gas at the laser head, a method that works perfectly to shroud the metal when laser cutting. While our Bystronic 10kw laser can cut using both nitrogen or oxygen gas, plus in-air and scan cutting, we chose nitrogen over all other methods for its ‘blanketing’ effect.
Oxygen has great uses for other projects, but it can oxidise the metal and potentially cause rust, something we did not want for this project. When combining nitrogen with the powerful 10kw laser, a protective guard is formed around the metal as it’s cut.
Laser cutting experts: equipment and team
With 17 different shapes and 556 parts to be made, control was central to the performance of this job, so our team had an overview of the process from start to completion. We had our most advanced programmers on board to program the systems, working smartly and efficiently to get production up and running without fault.
For ultimate precision and fastest turnaround, we chose our world-class 10kw Bystronic Fibre Laser for this project, a machine that is able to handle large batches fast and reliably. Plus, we used our Bystronic ByTrans Extended Automation for faster job processing, which enabled the automatic loading and unloading of the metals. Automation is incredibly useful with a high volume of parts.
All the metal pieces for a masterpiece
In the hundreds and dozens, every single piece was produced seamlessly and flawlessly! Overall, we achieved the high volume of metal cut parts within a short timeframe and delivered these to a very satisfied client. He was ultimately relieved that these did not have to be cut by hand, and was pleased with the precision of the cut. Commenting on our part in the project, the client said:
"Thanks again for your help with this – this seems to be a wonderful way of creating sculptures!"
"Being part of such an exciting project is so rewarding."
"It’s great to see how our laser cut parts are used, especially on such a remarkable project!"
Metal laser cutting: for large and complex jobs
At Laser 24, we offer the highest flexibility for large series jobs and spontaneous customer orders, regardless of whether these are aluminium, non-ferrous metals, or steel. We provide unbeatable productivity in laser cutting, producing from 1mm to 25mm mild steel, and up to 30mm in aluminium and stainless steel. We excel with maximum precision in both thin and thick sheets and profiles.
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