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← ScienceWhich risk increases when a laser cutting machine's speed exceeds the material's melting point's heat absorption rate?
A)Increased heat-affected zone dimensions✓
B)Reduced kerf width precision
C)Localized material plasma formation
D)Elevated back reflection intensity
💡 Explanation
Increased heat beyond what the material can absorb and dissipate causes an undesirable expansion of heat affected zones zones because thermal diffusion is increased; therefore the heat-affected zone is proportionally larges, rather than a change to plasmas or surface effects, because those are second order effects.
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