Turning centre raises productivity 30-50%
A twin turret, twin spindle turning centre has helped an UK aerospace subcontractor to improve its machining productivity by an average of 30%, and up to a staggering 50% on many components.
Helping Rodford Engineering to 'fly high' in the aviation world is a new Miyano BNJ-42SY twin turret, twin spindle turning centre. The new machine has helped the Wimborne, UK- based subcontractor to improve its productivity by an average of 30% and up to a staggering 50% on many components. The second tier aerospace subcontractor manufactures aerospace components for prestigious companies such as Westland Helicopters, Airbus UK and Flight Refuelling of Wimborne.
To gain recognition to work with such companies; Rodford Engineering is ISO 9002 accredited and it has also obtained stringent aerospace certification to supply its customers.
Working with only a handful of customers the majority of the company's work is on fuel systems for the military and Airbus aircraft as well as engine ducting work.
Rodford Engineering's managing director, Rod Dallyn comments: 'We have invested heavily in new equipment in the last three years - buying three mill/turn centres and also replacing older machining centres.
Despite only purchasing the Miyano in September, the BNJ-42SY is likely to have the largest impact of all our machines on the bottom line of the business.' The 13 employee company operates scheduled batch runs with over 100 permanent component types being supplied on a Just in Time (JIT) contract basis.
Operating a JIT system in the aerospace industry puts considerable pressure on Rodford Engineering as Dallyn continues: 'We are under ever increasing cost down pressure from our suppliers and all the while we are expected to absorb the rising material prices.
To combat this, investment in technology is a must.
We recently purchased three mill/turn centres that successfully produce our components to the high standard required by the industry.' He says: 'However, the machines do not have a barfeed and they do not have twin turrets like the Miyano BNJ-42SY.
The barfeed facility allows us to run the machine unmanned leaving the machinist to attend to alternate tasks whilst the twin turret has improved productivity beyond belief.
The Miyano's ability to machine the back of a part with the back spindle and turret whilst the front of the next part is machined on the main spindle has slashed cycle times by 50% on many parts.' When selecting a turning centre, Rodford Engineering specified a machine that could produce complex components and reduce second and third operations.
Rodford also needed a machine with a small footprint and rigidity to comfortably take substantial cuts and produce high surface finishes on the inconel, titanium, stainless steel and aluminium parts the company produces.
'We knew exactly what we needed and the excellent reputation of Miyano for its machines and its service, led us straight to their door.
Another major attraction of the machine is its 42mm capacity and the Fanuc control.
The Fanuc control is the same as all our other machines and this enables us to move staff around.
The Miyano programs are similar if not identical to the current programs, so the training and familiarity period with the machine was very short,' continues Dallyn.
Catering to the company's JIT program, the productivity capability of the Miyano BNJ-42SY now sees the company setting the machine for its average batches of 250 to 1,000 and holding small levels of stock.
This has freed capacity on all the alternate turning centres for short run work.
The short set-ups and the end of manual loading has been a productivity revelation to the aerospace manufacturer.
An example of this productivity can be seen with the company's manufacture of trunnions and threaded bushes.
Rodford previously made significant quantities of both products by using up to four alternate set-ups or machines.
The parts are now manufactured in one hit with a cycle time reduction of over 50%.
Looking to the future Dallyn concludes: 'We are always looking to become more productive and I see twin spindle and twin turret turning centres playing a large part in our future.
Another option for us would be to introduce tool monitoring equipment to enable the Miyano to run throughout the night unmanned.