Tools Center
Engineering calculators plus quality workflow tools for PPAP, root cause analysis, 8D responses, and SCAR drafts.
Stamping — Inputs • Stations • Results
Assumptions: τ=0.8×UTS; forming is 90° in-die; stripping ~10% of cutting; hold-down ~25% of forming.
| Station | Cut P (mm) | Form L (mm) |
|---|---|---|
Total cutting force
Estimated stripping force
Total forming force
Overall required (summed)
Hold-down (nitrogen) force
Estimated nitrogen pressure
Pad contact area
Press Brake Tonnage (Air Bend)
F = 1.33×UTS×t²×L / V (UTS in MPa; internal conversion). Guidance: V ≈ 8×t (safe 6×t → 10×t). Range ±15%.
Suggested tonnage
Safe tonnage range
Suggested V
Safe V range
Coil Calculator (≤ 5000 lb display)
Length L = (W/ρ)/(t·w). OD = √(ID² + 4·t·L/π). Blanks = ⌊L/advance⌋. Metric converts internally and displays both.
Total strip length
Blanks per coil
Estimated OD
Fiber Laser — Nitrogen Cut (4 kW default)
Starting values; verify with cut quality. Pressure is supply setpoint; focus relative to top surface (− = below).
Nitrogen pressure
Focus position
Feed rate
Machining — Speeds & Feeds (End Milling)
RPM from SFM; Feed = chipload × flutes × RPM. Suggested ranges ±20%.
Spindle speed
Feed rate
Chipload / tooth
Surface speed
RPM safe range
Feed safe range
Chipload safe range
Drilling & Tapping — Recommended Tap Drills
Tap drill (decimal)
Nearest standard drill
Thread data
Formulas: Inch (UN) drill ≈ Major − (0.01299 × %Thread × Pitch) with Pitch=1/TPI; Metric drill ≈ Major − 0.013 × %Thread × Pitch. Verify critical features against your shop standard.
Socket Head Cap Screws — Drill & Counterbore
Clearance drill
Counterbore Ø
Counterbore depth
Recommended pilot
Dimensions are typical for standard SHCS (ANSI/ISO style). Depth ≈ head height + clearance. Check your supplier spec if head style varies.
General Unit Converter
Conversions are SI-referenced. Temperature uses affine transforms (not proportional).
Fraction to Decimal Conversion
| Fraction | Decimal |
|---|---|
| 1/16 | 0.0625 |
| 1/8 | 0.125 |
| 3/16 | 0.1875 |
| 1/4 | 0.250 |
| 5/16 | 0.3125 |
| 3/8 | 0.375 |
| 7/16 | 0.4375 |
| 1/2 | 0.500 |
| 9/16 | 0.5625 |
| 5/8 | 0.625 |
| 11/16 | 0.6875 |
| 3/4 | 0.750 |
| 13/16 | 0.8125 |
| 7/8 | 0.875 |
| 15/16 | 0.9375 |
| 1 | 1.000 |
Covers common fractions between 1/16 and 1 inch.
Quick Calculator
Supports +, −, ×, ÷, parentheses, and fractions like 7/16. No variables or functions.
Result
Springback Estimator (Air Bending)
Rule-of-thumb model tuned for shop use. For bottoming/coin, springback is much lower.
Estimated springback
Overbend angle
Suggested punch angle
R/t ratio
Typical 90° air-bend springback at R≈t: steel ~2°, stainless ~3°, HSS ~3.5°, aluminium ~1°, copper ~0.8°.
QA Tools
Build structured prompts for PPAP, Root Cause Analysis, 8D, and SCAR responses. Keep customer-sensitive data out unless approved.
- PPAP: paste process steps, key dims/CTQs, gage method, and any capability data.
- RCA/8D: include dates, lot/line, containment already done, suspected causes, and how you’ll verify effectiveness.