Minimum Hole Size and Edge Distance in Sheet Stamping
A drawing-review guide to small pierced holes, punch-to-stock ratios and worst-case edge ligament in stamped parts.
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Blog
Limiting Drawing Ratio: Assessing Part Feasibility Before Building a Stamping Die
Understand limiting drawing ratio with checked blank-diameter calculations, clear diameter conventions, trial planning and a stamping-die feasibility worksheet.
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Bend Allowance and K-Factor: Developing Flat Patterns for Stamped Sheet Metal Parts
Calculate sheet metal bend allowance and K-factor with worked flat-pattern examples, bend deduction checks, sensitivity tables and a coupon validation plan.
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Metal Stamping vs Laser Cutting: Selecting a Process by Geometry and Production Volume
Compare complete stamping and laser-cutting routes by geometry, delivered-part requirements, revision stability and quantity. Includes hypothetical break-even calculations and a practical quote-review checklist.
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SPI Surface Finish Chart: Selecting Mold Finishes for Functional and Cosmetic Parts
A source-specific SPI preparation chart, checked roughness conversions and a practical guide to finish zoning, material samples and inspection acceptance.
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Nylon Moisture Absorption: Drying and Conditioning Injection-Molded Parts
A grade-specific guide to nylon resin drying and molded-part conditioning, with moisture-state comparisons, checked mass calculations and an inspection approval checklist.
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Scientific Injection Molding Process Window: Building Repeatable Part Quality
A practical process-window guide covering traceable baselines, a hypothetical 70-part trial matrix, dimensional-margin arithmetic and documented production release.
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ABS vs Polycarbonate: Selecting Materials for Injection-Molded Industrial Housings
A grade-specific ABS vs polycarbonate guide for industrial housings: interpret property methods, evaluate chemical exposure, calculate nominal mass and plan material release.
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Injection Molding Rib Design: Balancing Stiffness, Wall Thickness and Moldability
A technical guide to molded rib geometry: interpret supplier thickness guidance, compare a hypothetical section, review the physical mold and plan structural, dimensional and appearance checks.
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Injection Molding Gate Design: Selecting Locations for Functional Plastic Parts
A technical guide to injection molding gate design, covering location restrictions, gate concepts, flow and weld-line review, a checked geometric example, and approval evidence.
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