Technical writing on Swiss-type turning, 5-axis machining, turning centers, custom part design and AS9100D inspection practice — written for the engineers who release the prints.
A form by form walkthrough of the AS9102 first article inspection report: balloon drawings, characteristic accountability, how the report is built from CMM data, why primes reject packages, and when a delta FAI is required.
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Practical design guidance for Swiss turned components: guide bushing and bar diameter limits, length to diameter ratios, internal corner radii, thread relief, which tolerances genuinely need tenths, finish callouts and materials that run well.
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CNC West Magazine visited RJ Enterprises for a profile of the shop's move from single-customer legacy work to simultaneous 5-axis and mill-turn production, capital investment strategy and the road toward lights-out manufacturing.
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A first article report is not paperwork attached to a shipment. It is documented evidence that the process — not the sample — is capable of repeating the print.
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Bar diameter, length-to-diameter ratio and quantity decide the process. Getting that decision right at quote time is usually worth more than any cycle-time optimization later.
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Every time a part is unclamped and re-clamped, tolerance is spent. Simultaneous 5-axis work on Okuma and Haas trunnion machines removes those handoffs from the process.
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Guide bushing support, sub-spindle pickoff and 16 Swiss-type lathes are what make ±0.0002 in. diameters repeatable across a 50,000-piece run instead of lucky on one.
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