The Engineering Notebook

Category: Free Content

  • What are J Threads?

    J threads, are modified UN and metric threads where the external thread features a more rounded root profile, reducing stress points and enhancing durability under vibration, fatigue, and temperature changes.

  • Minimum Wall Thickness with CNC Machining

    Minimum wall thickness in CNC machining affects component performance. Understanding material-specific limits helps balance mass reduction with manufacturability.

  • Thread Rolling vs Thread Cutting

    This article explains the differences between cut and rolled threads. Cut threads are made by removing material, which can weaken the body. Rolled threads are pressed into the body without removing material, enhancing fatigue properties.

  • Undercuts and Thread Relief

    An undercut is a machined feature providing clearance for mating parts or tools. Common uses include seating shoulders and thread relief for cutting tools.

  • How to Analyse and Size Fillet Welds

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  • A Quick Guide to Calculating the Stress in Beams

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  • Fastener Groups; In-Plane Loading

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  • Fastener Groups; Flanged Bolt Couplings

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  • How to Calculate Pin Bending Stresses in Lugs

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  • How to Calculate Lug Stresses

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