Award-winning tool shop uses laser fusion for cooling inserts

Related Vendors

HASCO Hasenclever GmbH + Co KG

Renishaw plc

DIPROFIL Diamantprodukter AB

CONCEPT Laser GmbH

Demand for the technology in mould making is on the rise

In the middle of 2012, the shop delivered its 1,000th mould insert produced with generative technology, which means that within the space of five years additive manufacturing has developed to become an important factor in production at the factory in Bobingen – and this in a sector which traditionally thinks in terms of moulding, turning, sawing, milling and electrical discharge machining (EDM). The reasons for the increasing importance of laser melting with metals can be found in the requirements of modern mould making.

Increased focus on conformal temperature control

By using the “Laser Cusing” additive manufacturing technology from Concept Laser, cooling channels can be placed very closely beneath the contour of the mould. Complex parts with different wall thicknesses involving designs such as ribbing and webs can thus be cooled “close to the action”. Conformal cooling systems have become very popular. What was just a few years ago regarded as unachievable in relation to flow behaviour is simply done today. Along with a reduction in cycle time, part warpage in the part can also be reduced thanks this type of cooling. The cooling channel diameters are 5 mm. This means they can be placed 2-3 mm below the mould contour in order to achieve optimum cooling. The contrary, heat control, can also be performed via such channels. For example, this can be done in the case of parts with a high-gloss finish. Certain moulds even have both tasks in separate circuits: High-gloss surfaces that are heated, and on the inner contour areas of ribbing which are cooled in order to prevent warpage. In the case of Fassnacht moulds produced with this cooling technology, reductions in the cycle time on series moulds of up to 40% are said to be possible, which can add value to the production operation.

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