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VMCs have had a productive past, present and the future looks promising

“Metrology and its relationship to manufacturing is rapidly evolving,” Ken Woodbine, president, Wilcox Associates, a brand of Hexagon Metrology (North Kingstown, RI), recently observed. “We are seeing larger quantities and faster speeds of measurement data collection. The next challenge is what to do with all that data.”

Until the middle of 2010, first-tier subcontract machinist, JJ Churchill, could produce turbine blades only if they had their fir-tree root-forms preground elsewhere, or if they were subsequently added by another subcontractor. No longer is this the case.

Why use a metrology device on or near a machine tool? It isn’t just useful for making sure a tool is present or monitoring tools for wear or breakage. On-machine measurement technologies can save time and money, by speeding up processes and eliminating extra personnel, and they are a critical step in the movement towards “lights-out” manufacturing.

Micro components continue to shrink in size, demanding ever-greater precision and improved handling of parts with sub-micron-sized features. New approaches in micro machining technology include higher-precision systems from traditional micro machining developers, as well as techniques using additive manufacturing processes and semiconductor wafer-scale technology on the smallest of micro parts.

Today’s products require high finishes, burr-free edges, freedom from contamination, and often close tolerances. Electropolishing provides all of those conditions and more in a matter of seconds for many metal parts. It is a process that has been used for more than a hundred years. It is widely known and the science is widely discussed, but its ability to run job shop lots and high-precision high-volume parts in the same equipment makes it a bit unique.

It is reported that, not too long ago, before the current precipitous decline in machine-tool shipments, the number of 30-taper machines that were being manufactured and sold in Japan had surpassed the numbers of 40-taper and 50-taper machining centers.

Because it is a production cost, reducing the need for deburring can help the bottom line. In this podcast, part two of two, Alan Rooks, Editor in Chief of Manufacturing Engineering magazine, talks with Dr. LaRoux Gillespie, a researcher, engineer, manager, consultant, and writer with an extensive knowledge base on deburring and finishing. In this episode, the discussion focuses on ways to reduce deburring costs in forming and fabrication operations, such as improving product design; preventing burrs; minimizing burr properties; and removing burrs during the main fab process. Also discussed are how shops can determine if deburring or edge finishing is needed, and how they can choose among the 124 different deburring processes.

Preventive maintenance is essential for manufacturers to reduce downtime—and the vast amounts of data being produced by plants can be effectively used for predictive maintenance.

Sandvik has signed an agreement to acquire Canada-based ICAM Technologies Corporation, a provider of innovative solutions that translate CAM data into optimized coding for guiding CNC machining operations.