The blade is related to what
The first is the tool material, such as the resistance of the brand YT15 is not as good as YT5, then the blade of YT15 is easier to slide, and the different material parts of the car should be used with the license plate number. Look at cutting form, in the intermittent process (e.g., processing square flange), tool by cyclical impact, the same tool in continuous cutting must be more than the intermittent cutting, the life of a hair germ, the quality is poor thing (porosity, slag inclusion, surface had risen and fall big) can also cause alternating stress and led to the collapse edge. The third watch tool unit on the cutting edge of cutting resistance, cutting tool rake Angle is too small, the cutting tool not sharp, feeding the conference led to the increase of cutting resistance, excessive cutting resistance will cause collapse edge. It also has a relationship with the Angle of the car knife, such as the impact of the Angle on the lane.
The blade is worn too thin and the knife is fast and fast. An artifact has impurities or pores
One, the blade number of the blade, the specification chooses not. The blade is too thick or too rough for a plate that is too hard and too brittle. Solution: increase the thickness of the blade or set up the blade, choose the plate number with bending strength and toughness. Second, the choice of tool geometrical parameters is improper (such as before, rear Angle too big etc.). The solution can be set up in the following areas: (1), before and after the proper reduction; (2) using a large negative Angle; (3) reducing the main Angle; (4) using a large negative chamfer or a cutting edge; (5) the cutting edge of the cutting edge, the welding process of the tip of the blade, the blade, is incorrect, causing the welding stress to be too great or the welding crack. Solution: 1. Avoid the structure of three closed blade grooves; The correct choice of solder blade can be used with 105 # solder. The YT30 or YG3 blades can be used in 107 # solder. Avoid the use of oxyacetylene flame welding. 4, the structure that USES mechanical reinforcement as far as possible is not reasonable. If the quantity is too large, it is the machine tool stuffy. When cutting off, the cutting rate is too high and the quantity of supply is too large; When the margin of the blank is uneven, the cutting depth is too small; When cutting high manganese steel, such as high manganese steel, etc., the quantity of feed is too small
