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.
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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.
These days the most important theme in superabrasive grinding wheel development isn’t the abrasive, it’s the bond. The diamond or CBN grains do the cutting, but the bond plays a decisive role in exposing the grains to the workpiece and enabling coolant to remove heat.
Automotive supplier Faurecia (Nanterre, France) decided it needed to get serious about Industry 4.0 fast.
I traveled to Toyota headquarters in Japan with Jeff Liker for a research project. We wanted to learn more about the engineering and collaboration that created the Toyota New Global Architecture (TNGA), the strategy and innovation behind hydrogen vehicles, and how they had adapted and improved their development system to meet the increasing demands of the ultra-competitive global auto industry.
Machine manufacturers are working to streamline the gear-making process, to deliver a more highly finished gear in fewer steps.
Demand for machining titanium for aerospace applications won’t abate any time soon. It is driving OEMs and the supply chain in the commercial airplane market to find ways to dramatically increase machining output. Whatever date you pick from now until 2030, there’s a sufficient backlog of commercial airliners for both structural and jet engine applications to keep spindles humming around the clock cutting titanium.
When a manufacturer has excess inventory not adding value to the process, the inventory is hurting the company’s balance sheet, and is by definition wasteful.
The challenge of machining hip replacement implants out of cobalt chrome
When sizing up an application for a milling toolholder, it is necessary to consider the materials being machined, how aggressively metal is going to be removed, and any machining conditions that are likely to present a challenge to tooling security. By now, the pros and cons of hydraulic, mechanical, and heat-assisted shrink-fit systems are well known and results well documented.