In every manual for thread cutting, there's always a strong recommendation to use cooling lubricants for screw taps. This advice should never be overlooked! During the cutting process, especially when creating threads, friction is inevitable. This leads to increased heat, tool wear, and poor surface finishes on the threads. Failing to use cooling lubricants can result in damage to both the tap and the component being machined.
When it comes to tap lubrication, there are many different products available, each with unique features tailored for specific applications. These range from varying consistencies to specialized additives that provide benefits like corrosion protection or enhanced lubrication performance. With such a wide variety of options, choosing the right one can be confusing. We’ll break down the differences and guide you on what to consider when selecting cooling lubricants for taps.
Cooling lubricants for screw taps serve multiple purposes, as their name suggests. They are designed to cool and lubricate, but these functions aren’t equally emphasized. Depending on the machining process, one function may take precedence over the other. The cooling effect is more important at higher cutting speeds, while lubrication becomes more critical at lower speeds. Therefore, the focus tends to be more on the lubricating aspect in most cases.
Additionally, cooling lubricants help in removing chips during the cutting process. They ensure that the material being cut is efficiently removed from the work area. In industrial settings, where large volumes of coolant are continuously supplied, these lubricants effectively carry away the chips.
The main roles of cooling lubricants for screw taps include:
- Cooling effect
- Lubricating effect
- Chip removal
There are two main types of cooling lubricants for screw taps: water-miscible and non-water-miscible. According to DIN 51385, these are standardized based on their compatibility with water. Water-miscible coolants are mixed with water before use and are excellent at dissipating heat. Non-water-miscible coolants, on the other hand, are typically oil-based and offer superior lubrication properties.
The choice of coolant largely depends on the material being worked on. For example, water-miscible coolants are often used for steel, while non-water-miscible coolants may be preferred for difficult-to-machine alloys like INCONEL. Special care must also be taken when working with materials like magnesium or titanium, as certain coolants can lead to dangerous reactions.
In industrial environments, the supply of coolant must be consistent and even. Coolant can either be directed internally through the tool or sprayed externally. For hobbyists or small workshops, the process is simpler—just manually apply the lubricant as needed.
Choosing the right cooling lubricant is an important decision. While universal products may work well for occasional use, industrial applications require more careful selection. If you're looking for a reliable and versatile option, consider checking out cutting paste from a trusted manufacturer like BAER. It’s suitable for various materials, easy to use, and free from harmful substances like petroleum, chlorine, and sulfur. For more information, don't hesitate to reach out to their customer service team.
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