6.3 Cutting torch
The shape, pore diameter and height (the distance between the cutting torch outlet and
workpiece surface) of the cutting torch and other elements will impact on the cutting effect.
6.3.1 Function of the cutting torch
（1） Prevent melting stains and other foreign objects from bouncing back and passing
the cutting torch to pollute focus lens.
（2） Control the gas diffusion area and degree to guarantee cutting quality.
Figure 1 The Condition of Gas Spraying without a Cutting Torch
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