2024 Author: Beatrice Philips | [email protected]. Last modified: 2024-01-18 12:09
Different grades of steel are used in the production of drills. They must withstand the operating load corresponding to the brand. Therefore, when buying tools, it is important to make a choice according to their purpose for the type of proposed work.
Types of materials
Cutting fast-acting steels differ in chemical composition, so there is a marking
- Materials containing impurities of 10% cobalt, 22% tungsten. Marked as Р6М5Ф2К8.
- Materials containing 5% cobalt, 18% tungsten. Their brand is P9K5.
- Drill steel containing 16% cobalt and tungsten. Their brands are P9, P18, others.
The use of steels of these grades for tools of different strengths for different materials makes it possible to produce models with distinctive technical characteristics.
Such alloys make drills strong and reliable. The edge is strong, during the drilling process the entire length of the tool does not change the hardness indicators, does not crumble on the working surface of any density. Drilling and cutting tools are made from high-speed steel, which has alloy additives, for solving various construction issues. The use of steel alloys is wide:
- production of drilling tools of complex shape by casting;
- execution of cutters, their edges, in which the base is made from cheap materials, in order to reduce the cost of tools;
- manufacture of soldering on cutting tools, especially in the construction of drilling tools with replaceable edge;
- production of cutters using casting technology.
Which is the best option?
Due to the addition of chemical components, the characteristics of the properties of the metal change significantly. For the production of drilling tools, special materials are specially created in order to obtain high friction at the time of work . Alloy steel gives drills high qualities of hardness, which is why they can be used on drills, hammer drills with several speed modes.
Any steel drill has its own technical characteristics, which determine its application.
The grade of the alloy depends on the content of alloying elements, which allows you to choose a tool with accurate performance.
The choice of drilling elements depends on the scope of their use.
How to choose a drill?
The purpose of using a drilling tool is to make the required holes in various structures. The drills are different:
- device;
- production materials;
- scope of use;
- cost.
The price of products intended for metal structures differs sharply, which is determined by the materials from which such tools are made.
One drill is designed to work with aluminum products, the other with thick iron or stainless steel. Therefore, it is important to know exactly what materials are to be drilled, from which alloy the selected drill should be made, so that you can drill a hardened structure. The drill type is determined by its mechanism.
- Spirals are the most used . They are in the form of a metal cylinder with 2 to 4 helical grooves, which are designed to divert the cut material, reduce the friction of the drill against the walls of the hole being made.
- Auger . They differ from screw ones by the presence of only 1 spiral groove and a cutting end equipped with a sharp tip with a centering. The threaded tool tip allows the drills to drill into the structure themselves without additional effort.
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