How to choose the appropriate cutting fluid when using a twin-spindle machining center for high-speed cutting? in double pinmachining centerIn high-speed cutting operations, the reasonable choice of cutting fluid is crucial. This not only affects the quality and processing efficiency, but is also related to tool life and production costs. Mastery of scientific selection methods is therefore the key to guaranteeing smooth processing.
Machining material is the main consideration when selecting cutting fluid. For example, aluminum alloy is soft and tends to stick to the tool when cutting at high speeds, affecting surface quality. At this time, cutting fluids with good lubrication should be selected, such as products containing fatty acids and ester additives, which can reduce the friction between the tool and workpiece, reduce surface roughness, and prolong the life of the tool. Stainless steel has poor processability, generates a lot of heat during high-speed cutting, and wears tools quickly. It requires a cutting fluid with excellent cooling and lubricating properties and containing extreme pressure additives to form a chemical reaction film to prevent tool sticking and scratching. .
The features of the tools cannot be ignored either. High speed steel cutting tools have poor heat resistance and are prone to wear and annealing during high speed cutting. Water-based cutting fluids with good cooling properties should be selected to cool quickly and extend tool life. Carbide cutting tools are heat resistant but have low toughness and are susceptible to impact damage. They require cutting fluids with good lubricity to reduce friction and shock and improve their resistance to damage. Tool geometry also affects the choice of cutting fluid. Tools with large front and back angles have low friction and low heat generation, so a cutting fluid with good cooling and relatively low lubricity can be used. small front and rear angles, which require a cutting fluid with excellent lubricating and cooling properties.
From the perspective of machining technology, rough machining is mainly to remove excess thickness, with large cutting force and high heat output. A cooling-based cutting fluid, such as emulsion or semi-synthetic cutting fluid, which can both cool and cool, should be chosen. provide certain lubrication and cleaning performance. Finishing requires high precision and surface quality, low cutting force, and requires lubricant-based cutting fluids, oil and extreme pressure additives, which can reduce surface roughness and improve processing accuracy. machining.
The performance characteristics of the cutting fluid are at the heart of the selection. Cooling performance affects tool life and processing efficiency. Water-based cutting fluid has better cooling than oil-based cutting fluid and should be given priority when cutting at high speeds. The performance of the lubricant is related to the quality of the machined surface and the life of the tool, and oil and extreme pressure additives can improve the lubrication effect. Cleaning performance can remove impurities such as chips in time to ensure smooth processing. Water-based cutting fluid has good cleaning properties. Anti-rust properties prevent rusting on machined surfaces and machine tool components, and cutting fluids containing anti-rust additives can meet this need.
In addition, environmental protection and safety requirements are increasingly important. Priority should be given to cutting fluids with good biodegradability, low toxicity and low volatility. Water-based cutting fluids have advantages in this regard. At the same time, attention should be paid to the irritation and toxicity of cutting fluid to the human body, as well as safety indicators such as flash point and flash point to ensure the health of operators and safety of production.
In short, when a double spindle machining center performs high-speed cutting, it is necessary to comprehensively consider various factors and select the cutting fluid scientifically and rationally in order to achieve processing efficient, high quality and safe.
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