Copper itself is softer than steel, but I would like to ask whether copper will be like aluminum, and the cutting produced during sawing will stop the sawtooth
In the choice of sawing, sawing up to 2 - 3 mm deep groove, the saw blade has not slide out of the slot, the left thumb can leave the saw blade, righting bow (forward) saw back gradually become level, and then down to normal. Normal sawing sawing should make all the effective number of tooth saw blade on each trip in cutting.(4) the movement of saw bow when sawing:Straight line type: suitable for sawing kerf bottom and requires straight groove, thin-walled parts.Swing type: push: left hand right hand upward pressureRetreat: lift your left hand and float naturally(5) control of sawing speed:The cutting speed 20~40 / min, sawing stroke to keep a constant speed, return speed should be faster.
Added: when sawing, travel should be short, the pressure should be small, the speed is slow(1) far from sawing, in general, the use of far saw better, because the long saw is gradually cut into the workpiece, the sawtooth is not easily stuck by the edge of the workpiece, the saw is also more convenient(2) if the recent play saw nearly up and saw the master, will be the edge of the sawtooth workpiece stuck, at this time also can be used as a back handle saw up to the number of backward saw tooth saw when the increased exposure, further promoting the sawing edge will not be stuck.(3) sawing angle;From the angle of about 15 degrees in sawing, sawing if the angle is too large, it is not easy to cut smoothly, especially in the play will be saw sawing the edge stuck caused by crack; play saw angle is not too small, otherwise, because the number of teeth and tooth contact workpiece and more is not easy to cut.
Sawtooth thickness is said every 25mm length according to the number of teeth on the saw blade.14 ~ 18 teeth for coarse teeth, 24 teeth in tooth for fine teeth. Teeth thickness can also be t pitch size classification: coarse teeth from t=1.6mm, tooth pitch t=1.2mm, fine tooth pitch t=0.8mm.Selection of saw blade thickness:1, the thickness of the saw should be based on the hardness of the processing material, thickness, thin to choose2, cutting of soft materials (such as copper, Aluminum Alloy etc.) or thick material, should choose thick tooth saw blade, because more sawdust, require large chip space.3, cut hard materials (such as alloy steel) or sheet, thin tube, should choose fine tooth saw blade, because the material is hard, not easy to cut teeth, sawdust less, do not need large chip space; saw thin material, easy to be hooked and serrated workpiece is broken and needs at the same time the number of teeth, the tooth bearing force decrease.4, sawing medium hardness materials (such as ordinary steel, cast iron, etc.) and medium hardness of the workpiece, the general use of the tooth saw
