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Aerospace supplier Murray Productions is using the Edgecam CAM system in the manufacture of cockpit instrumentation, fuel management components, electronic tags and helicopter transmission parts.

The company uses a range of manufacturing processes including CNC machining, turning, thread rolling and pressing.

Its products are subjected to almost 100 per cent inspection, so it is critical that they are high precision.

Murray Productions’ Matchmaker and Bostomatic mills and lathes are all run with Edgecam and when they need components to be manufactured by wire erosion, Edgecam will also drive its subcontractor Beadle Precision Engineering’s Fanuc machine.

Warren Bell, managing director at Murray Productions, and Dave Arnold, machine programmer at Murray Productions, particularly like the visual aspect of Edgecam.

Bell said: ‘The solid model helps because instead of seeing a line move around the screen, we can actually see the chuck and the tool coming over and it gives us collision warnings.

‘We have never had a collision since we started using Edgecam.

‘Now we only spend a few hours a week on the program, giving us much more time to do other things.

‘The operator follows the path right the way through on the computer screen, and can liaise with the programmer and ask for amendments before the program is finalised,’ he added.

Murray Productions works mainly with aircraft-quality aluminium, but also makes components in stainless steel, brass, copper, bronze and titanium.

Edgecam is said to be easy to learn and manage.

‘When I need to cut up to 6in hardened steel for Murray Productions, the Edgecam program enables me to cut the profiles using wire erosion swiftly and accurately,’ said Barry Beadle, managing director of Beadle Precision Engineering.

Arnold explained that the company has only recently started to accept dxf and stl files regularly, and he likes the way they are easily imported into Edgecam.

‘Edgecam increases machine tool utilisation, it reduces programming time and component cycle time, it eliminates programming errors and reduces scrap, it reduces machine tool prove out by graphically simulating the tool path, and it prevents collision and expensive damage to machine tools,’ he said.

He added that it also assists in generating component costing by accurate cycle calculations and provides advanced rough and finish turning cycles, together with support for facing, boring and drilling in either canned cycle or longhand format.

He said: ‘Toolpath calculation takes into consideration the complete tooling insert and previously machined material, to avoid gouging and eliminate air cutting.’

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