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1. The influence of three elements: In the cutting process of the radial drilling machine, generally want to obtain shorter treatment time, long-term expectation and high-precision tool life. Therefore, it is necessary to fully consider the raw material, hardness, shape of the workpiece material, and the machine function, select suitable tools and apply high-efficiency cutting conditions.
2, the impact of cutting speed: cutting speed has a very big impact on tool life. The progress of cutting speed is fast and the cutting temperature rises, leaving several shortened tool life. Disposal is not the same species, the hardness of the workpiece, the cutting speed will change accordingly. A lot of cutting tests have resulted in:
1) In general, the cutting speed is increased by 20%, the tool resistance cost is decreased by 1/2, the cutting speed is increased by 50%, and the tool resistance cost is reduced to 1/5 of the original.
2) Cutting at low speed (20-40 M/min) is easy to vibrate and the tool life is expected to be shortened.
3. Effect of feed rate: The feed rate is the key factor in determining the quality of the surface to be machined. All the way also affects the scale of the chips and the thickness of the chips during processing. In terms of the effect on the tool life, when the supply is too small, the flank wear is large, the tool life is greatly reduced, the feed is too large, the cutting temperature is increased, the flank wear is increased, but the cutting speed is higher than the cutting speed. The effect of the number is small.
4. Depth of cut (AP): refers to depth of cut, and the undisposed appearance between processing and poor is mm. This is a difference between the diameter of a piece of raw material and half the diameter of the processing.
5, feed (fn): Feed is the amount of movement of the workpiece per revolution, mm/rev.
6, cutting speed (Vc): When the workpiece in the machine torsion, the revolutionary limit of the spindle speed per minute. Rotary work, where the cutting speed is at the cutting point diameter, is called the linear speed. Generally, the linear speed is used to consider the influence of the cutting speed on machining.
Which factors affect the effect of radial arm drilling?
In the use of radial drilling machines, there are six factors that affect the cutting results.