PLASTIC FABRICATION & THERMOFORMING CAM

Laser & Acrylic Line Bending Heat & Radius Calculator

Compute strip heater band width, heating dwell time (140°–160°C), bend radius outside setback (OSSB), and outer surface tensile stretch strain for cast/extruded acrylic and polycarbonate.

1. Polymer Material & Dimensions

Nominal sheet gauge (1.0 mm - 25.0 mm).
Angle of the fold (90° is standard right-angle display fold).

2. Tooling & Heat Source

Natural bend radius (typically ≥ 1.0 × T for optical clarity).

Thermal & CAM Bending Results

Heated Band Width (W_heat)
17.4 mm
Wire strip opening width
Heating Dwell Time
145 sec
Softening duration
Outside Setback (OSSB)
8.00 mm
Flat blank deduction datum
Outer Surface Strain (ε)
33.3 %
Tensile stretch ratio
ACRYLIC LINE BEND CROSS-SECTION PROFILE:

Bending Allowance Formula:

BA = (π × θ / 180) × (Ri + 0.5 × T)

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