Apple Charger Plug Pin Mold: Case Study on Production Challenges and Solutions
Case study on charger plug pin mold design: copper alloy forming risk, scratch control, profile compensation, inspection points, and RFQ inputs.
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Fastener mould insights for engineering buyers
Practical notes on carbide dies, punch pins, thread rolling dies, mould life, material behavior, and case-specific production decisions.
17 technical articles
Case studies and tooling guides
For procurement and engineering teams
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What engineers and buyers are reading
Each article is written to help evaluate tooling choices, production risk, and the questions to ask before requesting a quotation.
Volkswagen Stainless Steel Internal Torx Door Lock Bolt Tooling Case
Automotive internal Torx door lock bolt tooling case: stainless steel forming, punch wear, mirror EDM, polishing, coating, and RFQ checks.
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Italian Customer Visits Jungu for Bolt and Nut Tooling
An Italian customer visited Jungu on October 8, 2026 to discuss bolt and nut tooling, manufacturing processes and delivery lead times. See photos and video.
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Cold Heading Tooling Live in Istanbul: Highlights from Fastener Expo Eurasia 2026
Meet Jungu at Fastener Expo Eurasia 2026 in Istanbul. Explore cold heading tooling and custom die samples, and send your drawings for an engineering review.
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Why Cold Heading Dies Fail: Chipping, Cracking, Wear, and Incomplete Fill
Diagnose cold heading die chipping, cracking, wear and incomplete fill using failed-tool evidence, shrink-fit review, machine data and RFQ checks.
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How to Choose Thread Rolling Dies for Screws and Bolts
Choose flat or cylindrical thread rolling dies from machine architecture, tooling interface, blank control, material, inspection requirements, and RFQ.
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How to Choose a Cold Heading Die Supplier: A Buyer's Checklist
Compare cold heading die suppliers by tolerance capability, carbide selection, inspection process, engineering support and quote readiness.
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Tungsten Carbide vs Steel Cold Heading Dies: How to Choose
Tungsten carbide vs steel cold heading dies: compare tool life, cost, toughness and tolerances, and learn which to choose for your fastener production.
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Jungu at the 2026 Shanghai International Fastener Industry Expo
A short field note from Jungu Precision Mould at the 2026 Shanghai International Fastener Industry Expo, covering booth discussions around carbide dies.
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Thread Rolling vs Thread Cutting for Fasteners
Compare thread rolling and thread cutting for bolts and screws. Review volume, material, blank diameter, tolerance, machine fit, and RFQ data.
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How Thread Rolling Dies Work: Flat vs Cylindrical
Learn how flat and cylindrical thread rolling dies form threads, what controls fill and wear, and which machine and blank data a tooling RFQ needs.
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Tungsten Carbide Hardness: HRA, HV and Grade Selection
Tungsten carbide hardness is not one fixed value. Compare HRA, HV, binder content, grain size, toughness, and grade selection for cold heading dies.
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