Do we need drill bit for cast steel drilling?
In the drilling of concrete materials and stone materials, the use of percussion drill, with masonry drill, cutter material is generally hard alloy. Ordinary household, do not drill holes in cement wall, use ordinary 10mm specification flashlight drill.
Drill wood. Drilling holes on wooden materials, combined with the use of woodworking bit, woodworking bit sales volume, the hardness of the tool is not high, the tool material is generally high speed steel. There is a small sharp point at the center of the drill bit, and the angles on both sides are relatively large, even without angle. For a good fixed position. In fact, drilling with metal drills can also drill wood. Because wood is easy to heat, brittle is not easy to come out, so we must slow down, often exit, remove brittle debris.
Drill metal is generally black drill bit, drill material is generally high speed steel, in general metal materials (alloy steel, non alloy steel, cast iron, cast steel, non-ferrous metal) drilling, with the use of metalworking drill bits. However, pay attention to drilling on the metal material, not too high speed, easy to burn drill bit edge.Now, there are some gold plated with rare hard metal films, which are made of tool steel, which are hardened by heat treatment. The tip is made into two equal angles with a slight inclination to form an acute corner. Drill steel, iron, aluminum that has no heat treatment, in which aluminum is easily sticking to the drill and is lubricated with soapy water when drilling.
The drill material is usually made of high speed tool steel or carbide, and high speed steel is often used in the factory. When drilling, it will be added coolant according to the different materials and rotating speed.
Sometimes we need to drill a hole in the iron surface with a drill, but what kind of drill is used to drill the iron? Do you know the types and uses of the drill bit? In fact, there are many kinds of drill bits, mainly based on their different uses, which is what to drill and what kind of drill bits to use. In order to let you better understand the relevant knowledge of the drill, the following Xiaobian give you a brief introduction to the use of a variety of commonly used bits of it.
