2013年8月15日星期四

A new high-speed hacksaw trials

In order to extend the service life of the metal circular sawing machine with the new HSS film (new unused HSS film or after each grinding HSS film) has a running-in process more fully in the cutting operation begins within 10 minutes, reducing the feed rate is very necessary.
2, the cutting speed and feed
Cutting speed depends on the cross-section of the workpiece to be cut and toughness. For such a hard  cutting discs cutting stainless steel, high toughness materials, a slower speed is very conducive to improving the life of HSS film; while for some iron and the like, relatively low toughness materials, high-speed hacksaw speed can be increased accordingly.
3, timely and correct grinding HSS film
Pay attention to the HSS film work, the occurrence of abnormalities such as vibration, my voice, machined surface material moving situation, you must promptly stop adjustment, and cutting blades  timely grinding, maintaining peak profits. Timely and proper re-grinding HSS film can play a high-speed hacksaw maximum performance.
4, adding a suitable cooling liquid
Because when the heat generated by the cutting, it may cause HSS film deformation, no coolant, not only affect the speed hacksaw life, but cutting effect is not ideal. So please join coolant.
5, observe sawdust determine the  concrete saws effectiveness of the current high-speed hacksaw state
1) is very fine sawdust or powdered, which means cutting pressure is too small
2) of a soft sawdust, which means overload cut
3) sawdust as long spiral filaments, which means that in good condition
4) If the increase in feed rate, the corresponding number of teeth should be selected coarse

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