The discussion of high speed cutting is still somewhat confusing. There are many ideas and many ways to define high speed cutting (HSM). One of the main goals of high-speed cutting is to reduce production costs through high productivity. It is mainly used in finishing processes and is often used to process hardened die steels.
High-speed cutting The discussion of high-speed cutting is still somewhat confusing. There are many ideas and many ways to define high speed cutting (HSM). One of the main goals of high-speed cutting is to reduce production costs through high productivity. It is mainly used in finishing processes and is often used to process hardened die steels. Another goal is to increase overall competitiveness by reducing production time and delivery time.
Practical advantages of high speed cutting
Tools and workpieces
The low temperature can be maintained, which in many cases extends the life of the tool. On the other hand, in high-speed cutting applications, the amount of cutting is shallow, and the cutting edge of the cutting edge is extremely short. That is to say, the feed is faster than the heat.
Low cutting forces result in small, consistent tool bending. This, combined with the constant machining allowance required for each tool and process, is one of the prerequisites for efficient and safe machining.
Since the typical depth of cut in high speed cutting is shallow, the radial forces on the tool and spindle are low. This reduces wear on the spindle bearings, rails and ball screws. High-speed cutting and axial milling are also good combinations. They have a small impact on the spindle bearings. With this method, the tool with a long overhang can be used with little risk of vibration.
High-productivity cutting of small-sized parts, such as roughing, semi-finishing, and finishing, is economical when the overall material removal rate is relatively low.
High-speed cutting achieves high productivity in general finishing and excellent surface quality. The surface quality is often lower than Ra 0.2 μm.
High speed cutting
Cutting of thin-walled parts is possible. With high-speed cutting, the knife time is short, and the impact and bending are reduced.
The geometric accuracy of the mold is improved and assembly is easier and faster. The surface texture and geometric accuracy of CAM/CNC production can be obtained regardless of the person or skill. If the time spent on cutting is slightly more, the time-consuming manual polishing work can be significantly reduced. It can often be reduced by 60-100%. Some machining, such as quenching, electrolytic machining and electrical discharge machining (EDM), can be greatly reduced. This reduces investment costs and simplifies logistics. With cutting instead of electrical discharge machining (EDM), tool life and quality are also improved.
With high-speed cutting, the design can be changed quickly with CAD/CAM, especially without the need to produce new electrodes.
Due to the high acceleration and deceleration of the starting process and the stop, the guide rails, ball screws and spindle bearings produce relatively fast wear. This often leads to higher maintenance costs.
Requires specialized process knowledge, programming equipment, and an interface to quickly transfer data.
It may be difficult to find and select senior technical staff.
There is considerable time for debugging and failure.
There is no need for an emergency stop during processing, resulting in human error and software or hardware failures with many serious consequences.
There must be a good processing plan - "Providing food to hungry machine tools."
Safety measures must be taken: use a machine with a safety cover and a debris-proof cover. Avoid large overhangs of the tool. Do not use "heavy" tools and posts. Regularly check the tools, posts and bolts for fatigue cracks. Use only tools that indicate the highest spindle speed. Do not use integral high speed steel (HSS) tools!
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
High-speed cutting The discussion of high-speed cutting is still somewhat confusing. There are many ideas and many ways to define high speed cutting (HSM). One of the main goals of high-speed cutting is to reduce production costs through high productivity. It is mainly used in finishing processes and is often used to process hardened die steels. Another goal is to increase overall competitiveness by reducing production time and delivery time.
Practical advantages of high speed cutting
Tools and workpieces
The low temperature can be maintained, which in many cases extends the life of the tool. On the other hand, in high-speed cutting applications, the amount of cutting is shallow, and the cutting edge of the cutting edge is extremely short. That is to say, the feed is faster than the heat.
Low cutting forces result in small, consistent tool bending. This, combined with the constant machining allowance required for each tool and process, is one of the prerequisites for efficient and safe machining.
Since the typical depth of cut in high speed cutting is shallow, the radial forces on the tool and spindle are low. This reduces wear on the spindle bearings, rails and ball screws. High-speed cutting and axial milling are also good combinations. They have a small impact on the spindle bearings. With this method, the tool with a long overhang can be used with little risk of vibration.
High-productivity cutting of small-sized parts, such as roughing, semi-finishing, and finishing, is economical when the overall material removal rate is relatively low.
High-speed cutting achieves high productivity in general finishing and excellent surface quality. The surface quality is often lower than Ra 0.2 μm.
High speed cutting
Cutting of thin-walled parts is possible. With high-speed cutting, the knife time is short, and the impact and bending are reduced.
The geometric accuracy of the mold is improved and assembly is easier and faster. The surface texture and geometric accuracy of CAM/CNC production can be obtained regardless of the person or skill. If the time spent on cutting is slightly more, the time-consuming manual polishing work can be significantly reduced. It can often be reduced by 60-100%. Some machining, such as quenching, electrolytic machining and electrical discharge machining (EDM), can be greatly reduced. This reduces investment costs and simplifies logistics. With cutting instead of electrical discharge machining (EDM), tool life and quality are also improved.
With high-speed cutting, the design can be changed quickly with CAD/CAM, especially without the need to produce new electrodes.
Due to the high acceleration and deceleration of the starting process and the stop, the guide rails, ball screws and spindle bearings produce relatively fast wear. This often leads to higher maintenance costs.
Requires specialized process knowledge, programming equipment, and an interface to quickly transfer data.
It may be difficult to find and select senior technical staff.
There is considerable time for debugging and failure.
There is no need for an emergency stop during processing, resulting in human error and software or hardware failures with many serious consequences.
There must be a good processing plan - "Providing food to hungry machine tools."
Safety measures must be taken: use a machine with a safety cover and a debris-proof cover. Avoid large overhangs of the tool. Do not use "heavy" tools and posts. Regularly check the tools, posts and bolts for fatigue cracks. Use only tools that indicate the highest spindle speed. Do not use integral high speed steel (HSS) tools!
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
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