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Burrs, sharp edges, and rough surfaces plague even the most precise metal-cutting or forming process. Deburring and finishing can often be treated as the step-child of a manufacturing process, but its importance is growing as tolerances get tighter and precision devices become the norm.

Many precision grinding machines on the market already offer their users near-perfect tolerances, leaving one to wonder: What’s next in grinding? But tool builders still have plenty of room to add valuable new improvements, machine shop owners say.

A recent effort by the Norton Advanced Applications Engineering Group demonstrates that for difficult-to-machine materials, grinding can be an economical alternative to other machining processes.

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.

As in other industries, U.S. forming and fabricating companies are experiencing a critical shortage of skilled labor. In this SME Media podcast, Alan Rooks, Editor in Chief of Manufacturing Engineering magazine, talks with Robert Tessier, National Director of Advanced Fabrication Technologies for Airgas about the skills gap in the forming and fabricating industry; changes needed in the education system to fill the need for skilled labor; how automation factors into efforts to reduce the skills gap; and efforts at Airgas to develop workers for manufacturing operations, including a special program for military veterans.

Manufacturers continually seek ways to make their products stronger and last longer. High Velocity Oxygen Fuel (HVOF) spray coatings help achieve those goals. However, grinding the coatings can be a challenge.

Grinding is a vital process for manufacturing and finishing precision parts, but some manufacturers overlook some of the key ways they can improve the grinding process. In this episode, Alan Rooks, editor in chief of Manufacturing Engineering magazine, talks with Doug Henke, technical specialist for DCM Tech, serving the South & Southeastern United States and Mexico, about the main reasons a manufacturer should take the time to optimize their grinding processes; the root causes of some common grinding problems; high level optimization tips for grinding operators; and how selecting the proper abrasive can be a difficult task but is essential.

Whether the process is cylindrical or profile grinding, automation, which can increase cycle time, throughput, consistency of part quality and taking real-time in-process measurements, is once again in demand. The reasons can be found in the benefits found in typical applications and the innovative and effective forms of automation available from machine builders like United Grinding Technologies Inc. (UGT; Miamisburg, OH), and their automation integrator of choice, Matrix Design Inc. (Elgin, IL).

Expanding use of ever-harder materials has opened the door to wider use of grinding processes on materials such as titanium, ceramics, and superalloys.

Keeping products clean is becoming a more significant part of manufacturing as standards for cleanliness, deburring, and finish grow more stringent.