Cut face, dross and corner defects

16 field notes on this topic

No note in this topic matches that keyword.

• Molten slag left behind in the corners, with localised burning and pitting on the cut face.
  Original record

  切割拐角处残留熔渣烧蚀，局部切面凹凸破损

• Wavy ripple pattern across the cut face — the face is not flat and the amplitude grows with thickness.
  Original record

  切割断面出现凹凸波浪纹路，切面不平整

• On a bevelled face one side cuts clean and the other does not — usually a focus or gas-axis problem, not power.
  Original record

  倾斜面切割两面好，两面差

• Square-cornered parts: burning at the corner on carbon steel, dross at the corner on stainless. Corner dwell and lead-out matter more here than speed.
  Original record

  切割带直角零件时，如果解决碳钢拐角烧边或者不锈钢拐角挂渣的问题。

• Oxygen pressure too low — molten slag cannot be expelled, so it re-solidifies on the bottom edge.
  Original record

  氧气压力不足，熔渣排不干净

• Cutting speed too high — the material is not fully penetrated before the head moves on.
  Original record

  切割速度过快，熔透效果差

• Rack-and-pinion backlash combined with overly aggressive acceleration.
  Original record

  导轨齿条间隙大、加减速参数高

• Unstable cutting speed traced back to an acceleration parameter that is set too high.
  Original record

  切割速度不稳、加速度参数过高

• To cut down piercing spatter: shorten the piercing duty cycle and use more negative focus, enable lead-in and lead-out, tune the curve power, and put small round holes on their own layer with reduced power and speed.
  Original record

  减少穿孔渣子（可调小穿孔占空比和增大负焦穿孔），启用起刀和收刀工艺，调节曲线功率，可分图层调小圆切割工艺及速度

• The four-step fallback for a stubborn dross problem: slow the feed, raise gas pressure, raise the focus, and fit a nozzle one size larger.
  Original record

  减慢速度，加大气压，拉高焦点，更换大一号喷嘴

• Start the cut with a slow lead-in, or add a circular lead-in at the start of the lead line, to stop burn marks at the entry.
  Original record

  起刀用慢起点或使用在引线起点加圆孔引入

• Position drift diagnosis: round holes came out as a sine curve. Once the arc itself is distorted the offset accumulates into a position error.
  Original record

  加工偏位的思路--- 圆孔切成正玄曲线导至偏位

• Check whether the sheet is sitting too far off level — an uneven support bed mimics a hundred other faults.
  Original record

  检查板子摆放是否倾斜过大

• Will not sever, will not pierce, will not cut through — treat these as one family and check focus, gas and nozzle diameter first.
  Original record

  切不断 切不穿 切不透

• Serrated, saw-tooth edge on the cut face — check acceleration limits and the belt or rack for lost motion.
  Original record

  激光切割为何会出现锯齿现象

• Kerf measurably wider than it used to be — check focus position, nozzle wear and whether the lens has degraded.
  Original record

  光纤激光切割机切缝变大？