How to specify and verify dimensions on iron castings. We translate ISO 8062 casting tolerances to drawings, set GD&T for machined features, and explain shrinkage and machining allowances with CMM/3D-scan case studies.
Guided by YB Metal (Suzhou, China), GD&T for castings — green sand, resin/no-bake & shell molding under one roof, plus machining, simulation-led gating/risers, and traceable QA. Excerpt: Casting drawings mix as-cast and machined features. This guide shows how to set GD&T (flatness, position, profile) that matches process capability—so parts pass first time without over-specifying cost….
Engineer’s guide to ISO 8062 casting tolerances grades—what they cover, typical capability by green/resin/shell, how to annotate drawings, and how CT interacts with GD&T and machining allowance. Includes real CMM examples (mm/in). TL;DR — what ISO 8062 is (and isn’t) Typical CT grades by process & size (capability window) Indicative windows from production programs (gray/grey…