High efficiency of gun drilling

Hard table gold gun drill is also called deep hole drill, which is mainly used to process deep holes. When milling cast iron, copper, aluminum profile, alloy steel and other raw materials, hard table gold gun drill should carry out hole opening, cutting and milling at one time, which can reduce the types of NC blades, reduce production costs, reduce production cycle and improve economic benefits. At present, it is widely used in the shipping industry, automobile engine, electric locomotive, mechanical equipment manufacturing Fuel injection pump, oil pump, mining machinery equipment, engineering machinery accessories and mold manufacturing are widely used.

Gun drill belongs to semi precision machining. The precision of holes in all fields will be greatly improved, which is generally not easy to lead to wool. The great advantage is that there is no need to cut in the middle, and the one-time processing is carried out, so the efficiency is high. Because of the difficulty of chip removal, the machining center must have a high internal cooling pressure. The smaller the hole, the greater the pressure. For example, for a 2mm hole, the pressure must be at least 125bar. There is also a deep layer that can be processed, which is much deeper than the twist bit, and the larger height and diameter can ensure more than 300.

Gun drill represents excellent and efficient hole processing technology. Gun drill can be used not only to process deep holes (height diameter > 10), but also to process precision shallow holes. Gun drill is generally welded together by electric welding of drill handle, drilling equipment and twist drill bit. There is a buried hole in the middle of the gun drill, which is the safety exit for cutting oil to enter the drilling area. Twist drill is a key part of all gun drills. The raw material is cemented carbide cutter. Its unusual structure ensures that it also has the function of independent guidance in carrying out milling work, and a precision machined shallow hole can be obtained according to one-time tight surrounding.

The gun drill is processed into forced chip removal. High pressure cutting oil enters the gun drill thread from the drill handle to the drilling area and cools and lubricates the drill edge. The iron pin and cutting oil are discharged along the "V" groove of the drilling equipment. Also known as chip discharge. Because of the unique CNC blade structure of gun drill, there is no need to remove chips during deep hole processing, and it can be processed to the deep level at one time. The heavier the depth, the higher the processing efficiency. According to different raw materials and diameters, the processing speed can be guaranteed to be more than 30-100 mm / min.