Explosion Welding Standoff & Velocity Calculator

Calculate explosion welding standoff distance, detonation velocity, collision velocity, and flyer plate parameters

Input Parameters

Results

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Standoff Distance
mm
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Collision Point Velocity
m/s
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Flyer Plate Velocity
m/s
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Kinetic Energy
MJ/m2
Note: Explosion welding bonds dissimilar metals (e.g., titanium-steel, aluminum-steel). Detonation velocity must exceed sonic velocity in flyer for jetting.

Reference

Explosion Welding: Standoff ~ 1.0-1.5 x flyer thickness Flyer velocity (Gurney): Vp = Vd * sqrt(2R/(1+R)) R = explosive mass / flyer mass ratio Collision point velocity = detonation velocity KE = 0.5 * rho * t * Vp^2