Enhance Cutting Efficiency (3)
Enhance Cutting Efficiency (3)
6 Last Ways to Enhance Cutting Working Efficiency
What some other methods can we use to enhance cutting efficiency? Let's learn more skills now:
7. Design simple and easy sharpening clamp.
Clamped face milling cutter has high efficiency, easy to use, so it is very popular and well received by the CNC equipment operators. But the cutter blades waste largely, with high cost of using, and in most cases, the breakage of cutting tools blade is as a result of cutting edge wearing, so the re-sharpening and re-use of tools blade is important to manufacture factories, and they can get good economical benefits.
Solid carbide bits have high hardness, with low grinding efficiency. If we take single knife grinding cutting, it will not reach the purpose of saving. Therefore it is necessary to design the router collets of simpleness and high efficiency, to realize clamping multiple router bits in one time.
8. The selection of processing mode.
The processing mode is divided into 2 types: down cutting and up cutting. To the CNC machining centers, the mechanical drive system and structure itself have higher precision and rigidity, small friction coefficient of relative motion surface, small transmission parts space, small movement inertia, and suitable damping ratio, so it can adopt down milling way to improve working efficiency.
Besides, according to many years’ experience of machining operating, down cutting mode is able to increase more than 1 times of tool life than up cutting. If use asymmetric end milling way, engraver tools life can be even increased about 2-3 times.
9. Choose appropriate and reasonable processing route.
Setting correct, compact, and easy processing route is the foundation of guaranteeing working quality and improving efficiencies. When programming, the main principle to confirm machining route is:
1) Should guarantee spare parts working accuracy and surface roughness demands.
2) Should try to shorten machining path, reduce tools free travel move time.
3) Should make numerical computation simple, and code segments by low numbers, to decrease programming workload.
10. Workpieces clamping selection.
1) Should try to use combination router collets.
2) Because common router collets chuck has poorer flexibility, and relatively lower position accuracy, so in the condition of mass production and high demand of machining precision, we can design professional and specialized clamps.
3) Should be helpful to router bits changing and online measurement, in order to avoid collision.
11. Ancillary equipment must be complete and matching.
To lower tolerance.
12. Operating staff technical skills and knowledge training.
Working efficiency largely depends on the proportion of milling time accounting for whole service time. The bigger ratio is, the higher efficiency is.
In actual production, because of operators’ low technical level, unskilled handle, too long program debugging and work-piece changing time, result in the low processing efficiency.
Besides, they have too little professional knowledge, lack scientific guidance of the numerical control machining principle, technology, milling cutter selection, and cutting parameters setting. So build a well-established training system, strengthen technicians learning of theoretical knowledge, and enhance technological communications within and outside the enterprise, it is very necessary!
Increase Cutting Efficiency (2)
Increase Cutting Efficiency (2)
4 Other Methods of Increasing CNC Cutting Efficiencies:
Today, let us continue to introduce some other ways in how to increase cutting efficiency.
3. Accelerate the developing of coating technology.
Since tools coating technology come out, the progress of performance improvement and processing technology of tools play a very important role, coated cutting tool has become the sign of modern cutters, and represent more than 50% of cnc router bits.
At the beginning of the 21st century, the proportion will further increase, hopefully break through CBN coated technologies, and make CBN excellent quality performance be applied in more cutters and milling machining work (including precision complex tooling and molding cutter). Meanwhile, it will also fully improve the cutting level of processing ferrous metals. Besides, the development and application speed of nanoscale ultra-thin, super multilayer and new type coating materials will quicken, coating will become the main route of improving blades performance.
4. Select high precision blades.
If the blades with low precision, the jump range is too big, the working surface finishes of face milling cutter will be reduced, even grooves arise. For high-precision CNC machinery, the jump range of engraving tools should be controlled in 2-5μm.
5. Improve work surface quality.
If keep the same cutting efficiency, increasing cutting speed can improve chips formation process, and add cutting damping, control flutter, improve surface roughness, thereby it is beneficial to the machining of precision parts and moulds.
6. Set up reasonable cutter base.
It mainly refers to high machining efficiency cutter. As usual, these cnc bits are higher-priced, for the end mill bit with same diameter size, the good milling tools price may be several or even tens of times than common tools.
If an enterprise stores good router bits in large quantities, while these may not be used in long time, then it will cause funds wasting. But if even a piece of bit is not stored, or reserve quantities are too small, used up very soon, new bits cannot be found in short time meanwhile,
so it will certainly affect the efficiency of numerical controlled processing. For most enterprises, the tool changer of CNC machining center can hold more than 40pcs router cutters, and 60, 90, 120, etc different number of knives for choice.
For 1-2 methods, please visit follows for reference:
http://www.astech-cnctools.com/news/improve-cutting-efficiency-1-a-7.html
Thank you!
News for Wednesday 17 September, 2014
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