Calculateurs disponibles
Commencez par les calculateurs deja disponibles pour cette section, puis ouvrez les guides lies quand vous avez besoin de plus de contexte.
Bend Allowance Calculator
Browser-based preliminary check for Bend Allowance Calculator — fast estimates, not code or stamped design output.
Calculateur de chaine de tolerances
Additionner des tolerances lineaires en pire cas et en RSS pour un assemblage simple.
Shaft Hole Fit Calculator
Browser-based preliminary check for Shaft Hole Fit Calculator — fast estimates, not code or stamped design output.
Tap Drill Calculator
Browser-based preliminary check for Tap Drill Calculator — fast estimates, not code or stamped design output.
Clearance Interference Fit Calculator
Browser-based preliminary check for Clearance Interference Fit Calculator — fast estimates, not code or stamped design output.
Feed Rate Calculator
Browser-based preliminary check for Feed Rate Calculator — fast estimates, not code or stamped design output.
ISO Fit Tolerance Helper
Browser-based preliminary check for ISO Fit Tolerance Helper — fast estimates, not code or stamped design output.
Spindle Speed Calculator
Browser-based preliminary check for Spindle Speed Calculator — fast estimates, not code or stamped design output.
Stock Material Weight Calculator
Browser-based preliminary check for Stock Material Weight Calculator — fast estimates, not code or stamped design output.
Bend Deduction Calculator
Browser-based preliminary check for Bend Deduction Calculator — fast estimates, not code or stamped design output.
Drill Size Converter
Browser-based preliminary check for Drill Size Converter — fast estimates, not code or stamped design output.
Flatness Parallelism Helper
Browser-based preliminary check for Flatness Parallelism Helper — fast estimates, not code or stamped design output.
Manufacturing Unit Converter
Browser-based preliminary check for Manufacturing Unit Converter — fast estimates, not code or stamped design output.
Surface Speed Calculator
Browser-based preliminary check for Surface Speed Calculator — fast estimates, not code or stamped design output.
Thread Pitch Converter
Browser-based preliminary check for Thread Pitch Converter — fast estimates, not code or stamped design output.
GD&T Position Tolerance
Position tolerance zone diameter from feature size and material condition—GD&T communication alongside stack-up tools.
Usages typiques de la section
Ces parcours aident a choisir le bon calculateur avant une analyse plus poussee ou une verification de conception formelle.
Fits, clearances, and assembly intent
Use fit helpers to reason about whether parts should slide, locate, or press together before locking tolerances into drawings.
Tolerance stack-up before release
Check accumulation across multiple contributors so critical assemblies do not fail in production even when each part looks acceptable alone.
Machining setup and feature planning
Link bend allowance, tap drill, and fit assumptions to the same manufacturing story so process choices stay aligned with design intent.
Design-for-manufacture discussions
Use quick manufacturing math to keep design, quality, and production teams aligned before detailing becomes expensive to change.
Guides de la section
Les guides publies aident a comprendre les hypotheses, les formules et l'etape suivante apres un resultat rapide.
Use this guide when drawings show letters and grades but the assembly intent still feels ambiguous in review meetings.
Outil principal : Shaft Hole Fit Calculator
Use this guide when you need shared vocabulary between design, machining, and inspection without opening a full standards course.
Outil principal : ISO Fit Tolerance Helper
Use this guide for first-pass flat layouts before verifying against tooling-specific tables and springback studies.
Outil principal : Bend Allowance Calculator
Fabrication & tolerancement FAQ
Does this replace GD&T or manufacturing review?
No. These tools are meant for fast checks and communication. Final tolerancing still requires drawing standards, process knowledge, and inspection planning.
Why is tolerance stack-up so important early?
Because many assembly failures come from variation accumulation, not from a single bad nominal value.
What should every stack-up result include?
Nominal target, tolerance model used, sign convention, contributor list, and whether the result is worst-case or statistical.