Gantry CMM brings accuracy to aerospace firm

An aerospace manufacturer has taken delivery of a bridge-style coordinate measuring machine (CMM) from Metris.

Metris developed the LK gantry CMM with a measurement volume of 6m x 6m x 3m, to run geometry verification on large aerospace components and assemblies.

While the length of the measuring volume was well within the capability of many CMM manufacturers, the requirement for the super-wide width meant that only Metris LK was able to meet the customer's accuracy specifications.

The gantry-style CMM performs with an accuracy of 5um, which could only be achieved by the use of ceramic guide ways for the beam and spindle components.

Ceramic is an ideal material for metrology because it offers the ultimate in stiffness, combined with low weight and excellent thermal properties.

Used in combination with double air bearings that prevent torsion, this ceramic LK gantry CMM provides high and long-lasting measurement accuracy.

In its final location, the granite rails will be positioned on a purpose-built U-shaped concrete foundation to provide the 3m vertical measurement range.

Intensive collaboration with the customer enabled Metris to determine the final configuration and build the LK V 60.60.30 GP to perfectly match the customer's application needs.

A number of global companies, such as Caterpillar, BAE Systems and Buhler, rely on Metris LK to efficiently tackle their large-scale coordinate measurement metrology challenges.

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