HEAVY FABRICATION, PLASMA & 5-AXIS LASER CUTTING

Weld Bevel, Chamfer & Joint Prep Angle Calculator

Calculate precise bevel depth offsets, root face (land) dimensions, root gap opening, weld deposit cross-sectional volume, filler wire weight per linear meter, and 5-axis CNC torch trajectory offsets for V, Y, K, and X groove weld preparations.

1. Joint Type & Plate Geometry

Joint Groove Configuration

Plate Thickness ($T$) [mm]

Total thickness of parent metal plate.

Bevel Angle ($\theta$) [Degrees]

Angle from perpendicular cut face (30° bevel = 60° included V-angle).

Root Face / Land Height ($f$) [mm]

Unbeveled flat nose land to prevent burn-through (0 mm for sharp V-groove).

Root Gap Opening ($g$) [mm]

Fit-up spacing between mating plates at the joint root.

2. Weld Seam & Consumables

Total Weld Seam Length ($L$) [Meters]

Weld Cap Reinforcement Height ($h_{\text{cap}}$) [mm]

Weld crown reinforcement bead height above plate surface.

Weld Filler Alloy Density

Bevel Cut Offsets & Geometry

VALID AWS/ISO JOINT

Lateral Bevel Width ($\Delta x$)

8.08 mm

Top surface offset per side

Total Included Groove Angle

60.0°

$2 \times \theta$ for symmetrical butt

Groove Opening at Top ($W_{\text{top}}$)

18.66 mm

$g + 2 \times \Delta x$

Bevel Face Length ($S$)

16.17 mm

Actual cut surface path

Weld Metal Volume & Filler Mass

Groove Cross-Section Area

153.1 mm²

+ Cap: 178.0 mm²

Deposit Metal per Meter

1.40 kg / m

Based on alloy density

Total Filler Wire Required

7.69 kg

Includes 10% spatter allowance

Est. Weld Passes

4 Passes

Root + Fill + Cap (GMAW)

5-Axis CNC & CAM DXF Layer Spec

                        LAYER 0_TOP_SURFACE: Offset by $+8.08$ mm from nominal joint line

                        LAYER BEVEL_ROOT_LAND: Land height $f = 2.0$ mm @ torch tilt $\theta = 30^\circ$

                        TORCH_LEAD_IN: Approach @ $45^\circ$ angle outside bevel apex to prevent notch gouging

                        KERF COMPENSATION: Plasma bevel kerf taper $= 0.35$ mm dynamic offset