Engineering Reference

Quick-lookup tables and decision guides distilled from the knowledge base articles. Each page is written to be printed, pinned to a workstation, or used as a first-pass specification sheet.

Available references

The reference library covers alloy selection, tolerance and surface-finish specification, a casting-defect catalogue, CNC capability charts, material selection logic, an OEM supplier-audit checklist, a DFM checklist, and two automotive-focused guides (structural die casting and EV housing manufacturing).

Downloadable, spreadsheet-ready versions of every table are available from the Downloads section.

Aluminum Die Casting Alloy Comparison: A380, ADC12, A383, A360, A413, A356

Compare A380, ADC12, A383, A360, A413 and A356 aluminum casting alloys on composition, tensile strength, density and castability to select the right alloy for die casting.

9 min read

Automotive Die Casting Guide: Specifying Structural Castings

Guide to specifying automotive structural die castings: IATF 16949, APQP/PPAP, vacuum HPDC, elongation after T7, crash load paths and Al-on-steel corrosion isolation.

8 min read

Casting Defect Catalog: Causes, Identification and Correction

Casting defect catalog for die casting: cold shut, misrun, porosity, hot tear, solder, flash, blister, warpage, inclusion and erosion with cause, identification and correction.

10 min read

CNC Tolerance Chart: Capability by Process and Feature

CNC machining tolerance chart by process: ISO 2768-m/f, standard ±0.125 mm shop capability, ±0.025 precision, ±0.0125 tight, and hole grades H7/H8 by ream and bore.

8 min read

DFM Checklist: Design for Manufacture of Cast and Machined Parts

Design for manufacture checklist for cast and machined aluminium parts: wall thickness, draft, fillets, hole depth limits, tolerances, setups and standard tools.

7 min read

Die Casting Tolerance Guide: NADCA Standards and Practical Limits

Die casting tolerances per NADCA for aluminum, zinc and magnesium: linear, parting-line and moving-die limits, plus draft angles and wall-thickness practical guidance for drawings.

8 min read

EV Battery Housing Manufacturing Guide

Manufacturing guide for EV battery enclosures: pack vs structural pack (CTP/CTB), IP67 seal, thermal-runaway barrier, HV isolation, extrusion plus HPDC nodes and cooling plate.

9 min read

Material Selection Guide: Die Cast Alloy Decision Logic

Material selection logic for die cast parts: compare aluminum, magnesium, zinc and engineering plastics on strength, weight, wall thickness, corrosion, service temperature, cost and plating.

9 min read

OEM Supplier Audit Checklist for Casting and Machined Parts

OEM supplier audit checklist for casting and machined-part suppliers: QSA vs QPA, IATF 16949, machine tonnage, in-house machining, SPC/CMM, 8D/CAPA and molten-metal safety.

8 min read

Surface Finish Guide: Ra Values, Processes and Specification

Surface roughness Ra values by process for die cast and machined parts: as-cast, milled, turned, ground, polished, bead blast and coating build-up, with how to specify finish.

7 min read