Tuesday 2 December 08 - 14:56
 

CNC Machining

Machine Ops Reduced With Re-Engineered EDM

Since acquiring two Sodick re-engineered EDM machines from Sodi-Tech UK, Barrow-based Strand Engineering North West Ltd has managed to significantly reduce machining operations for complex parts - items that previously required eight or ten operations can now often be completed in only one or two operations.

A small engineering subcontract manufacturer, Strand has grown into a 24-employee, £1.5m turnover business serving prestigious customers in the defence, power generation, process and railway industries.

Approximately two years ago, Strand decided to invest in EDM, a new technology area for the company.

"We wanted wire cut and die sink EDM machines to allow Strand to produce precision components of a complexity not previously possible at the firm, " says Mr Martin. Sodi-Tech UK supplied Strand with two reengineered machines from its extensive stocks - a CNC A500W wire cut EDM and a CNC Moldmaker 3 die sink EDM.

"The machines have helped cut lead-times tremendously, " explains Mr Martin, "particularly on prototype and small/medium batch components.

Because we need to produce precision, complex parts with tight tolerances, some components could take up to eight or more operations using traditional milling, drilling and boring techniques. However, with EDM, especially wire-cut, this can often be reduced to a maximum of two. When a customer requires a quick response, the Sodick machines are invaluable.

Our acquisitions have also allowed us to pursue work that would have been beyond our capability previously. For instance, we are now actively seeking contracts within the medical sector involving EDM wire-cut and titanium welding."

Today Strand uses its Sodick machines to process components from a wide range of materials including steel, stainless steel, aluminium, bronze, titanium and brass. The company's accumulated expertise has allowed it to nurture an impressive list of blue chip clients that include BAE Systems and major companies in the oil, nuclear and transport industries.

Defence projects constitute a significant slice of Strand's order book. Recent systems and components have been supplied for the AS90 Self Propelled Gun, the 4.5 Mark 8 MoD.1.

naval gun for warships, the deep hoist system for ammunition on the Type 45 destroyer, the M777 lightweight howitzer for the US, the Terrier tank/bulldozer for battlefield engineers and the Astute nuclear submarine programme.

As well as machining operations Strand also offers fabrication, fitting, blast/paint, assembly and testing services.

Tel. 01229 821991

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Strand Engineering North West Ltd

Stevens Rowsell is a specialist precision sheet metal engineering company in East Sussex