丝攻的运用理念（Application concept of wire tapping）.doc

丝攻的运用理念（Application concept of wire tapping） A tool for machining internal threads with grooves in the axial direction. Also called a screw tap. The tap is divided into straight slot tap, spiral groove tap and spiral point tap according to its shape. Straight fluted taps are easy to process with low precision The utility model relates to a tool for processing internal threads, which is provided with grooves in the axial direction. Also called a screw tap. The tap is divided into straight slot tap, spiral groove tap and spiral point tap according to its shape. Straight fluted taps are easy to process with low precision Larger. Generally used in general lathe, drilling machine and tapping machine thread processing, cutting speed is slow. Spiral groove taps are mostly used for drilling blind holes in CNC machining centers. The processing speed is faster, the accuracy is higher, the chip removal is better, and the utility model is good for neutral. The front of the screw tap is provided with a slot for cutting through holes. Nowadays, most of the taps supplied by the tool factory are coated taps, and the service life and cutting performance of the uncoated taps are greatly improved. The cutting load distribution of the unequal diameter tap is reasonable, the machining quality is high, but the manufacturing cost is high. Trapezoidal thread taps are often designed with unequal diameters. Component Machine and hand taps are standard taps for cutting ordinary threads. In China, it is customary to call the high speed steel molars with high manufacturing accuracy as machine taps. The screw teeth (or incisors) of carbon tool steel or alloy tool steel are called hand taps. In fact, the structure and The working principle is basically the same. Normally, the tap is made up of the work section and the shank. The working part is divided into the cutting part and the calibration part. The former has a cutting cone and is responsible for cutting, and the latter is used to calibrate