Regarding tool maintenance

Clean and dry storage: After using CNC deep hole drilling tools, be sure to thoroughly remove impurities such as chips and oil stains from the tool surface. Special tool cleaning solvents and soft bristled brushes can be used for cleaning. For example, using a cleaning solution containing rust inhibitor can not only effectively remove oil stains, but also leave a thin layer of rust proof protective film on the surface of the tool. After cleaning, dry the tools with a clean soft cloth and place them on a dry and well ventilated tool holder. Avoid placing knives directly on damp ground or near water sources to prevent water vapor from condensing on the surface of the knives and causing rust.

Coating with rust proof oil or rust proof agent: For CNC deep hole drilling tools that have not been used for a long time, coating with high-quality rust proof oil or rust proof agent is an effective rust prevention measure. Rust proof oil can form a continuous oil film on the surface of the cutting tool, isolating air and moisture. When choosing rust proof oil, it should be determined based on the material of the tool and the usage environment. For example, for high-speed steel cutting tools, mineral oil-based rust preventive oil containing corrosion inhibitors can be used; For hard alloy cutting tools, due to the possibility of chemical reactions with certain rust preventive oils, it is necessary to choose rust preventive oils specially formulated for them. When applying anti rust oil, ensure that the oil film is uniform and covers the entire surface of the tool, including the cutting edge, handle, and other parts. Brushes or spray guns can be used for coating, and after coating, the tools can be placed in a sealed container or tool box to further enhance the rust prevention effect.

Tool coating protection: Some advanced tool coating technologies can not only improve the cutting performance of tools, but also have certain rust prevention functions. For example, the common TiN (titanium nitride) coating has high hardness and chemical stability, which can prevent tool rust to a certain extent. In the process of tool manufacturing, selecting coating materials with anti rust function reasonably and ensuring coating quality can effectively extend the anti rust time of the tool. The thickness of the coating is also crucial. Generally speaking, a coating thickness between 1-5 μ m is more suitable. If it is too thin, it may not provide sufficient rust protection, while if it is too thick, it may affect the cutting performance of the tool.

In terms of machine tool maintenance

Keep the machine tool clean and dry: The working environment inside the CNC deep hole drilling machine also has a significant impact on the rust prevention of the cutting tools. Regularly clean the worktable, fixtures, guide rails, and other parts of the machine tool to remove chips and oil stains. Machine tool specific vacuum cleaners and cleaning agents can be used for cleaning. At the same time, it is necessary to ensure that the humidity in the workshop where the machine tool is located is controlled within an appropriate range, and it is generally recommended to maintain a humidity of 40% -60%. If the humidity in the workshop is high, a dehumidifier can be used to reduce the humidity. For the coolant tank of the machine tool, it is necessary to regularly check the quality and level of the coolant to prevent coolant leakage from contaminating the internal environment of the machine tool.

Rust prevention treatment for machine tools: Metal parts of machine tools, such as bed frames and columns, are also prone to rusting. Rust prevention treatment can be applied to the surface of the machine tool, such as painting, phosphating, etc. Painting can not only prevent rust, but also beautify the appearance of machine tools. When choosing paint, the corrosion resistance and adhesion of the paint should be considered. For example, epoxy paint has good corrosion resistance and adhesion, and is a commonly used machine tool painting material. Phosphating treatment is a chemical reaction that forms a layer of phosphate protective film on the surface of metal, which can improve the rust prevention ability of the metal. The key components of the machine tool, such as the guide rails, can also be protected with rust proof grease. Regular application of grease ensures lubrication and rust prevention of the guide rails.

In terms of processing procedures

Proper use of cutting fluid: Cutting fluid not only plays a cooling and lubricating role in the CNC deep hole drilling process, but also has a certain rust prevention function. Choose the appropriate cutting fluid based on the type of processing material and tool. For example, in the processing of steel materials, emulsion cutting fluid is a commonly used choice, which contains anti rust additives to prevent rusting of tools and workpieces. When using cutting fluid, it is necessary to ensure that the concentration of the cutting fluid is appropriate. If the concentration is too low, it will affect its rust prevention effect. Generally, the concentration of emulsified cutting fluid should be maintained at 5% -10%. At the same time, it is necessary to ensure sufficient supply of cutting fluid, which can effectively cover the cutting area of the tool and workpiece, wash away the chips in a timely manner, and prevent chip accumulation from causing rust.

Pre treatment for rust prevention of workpieces: If the workpiece itself is prone to rust, it can be pre treated for rust prevention before CNC deep hole drilling. For example, for steel workpieces, treatment methods such as phosphating and passivation can be used. Phosphating treatment can form a layer of phosphating film on the surface of the workpiece, enhancing its rust prevention ability; Passivation treatment is a chemical method that forms a dense oxide film on the surface of the workpiece, preventing oxygen and moisture from contacting the metal inside the workpiece. These preprocessing methods can effectively reduce the possibility of workpiece rusting during the machining process, while also helping to protect the tools, as rusted workpieces may accelerate tool wear.