5 Machining Strategies For Milling – Basic & Advanced Milling Methods | Milling Machining Strategy

2021.4.27

When milling a component you want to ensure that everything is optimized and you are getting the most out of your machine tool and your tooling. In this guide, we’ll talk about the different machining strategies and rules as they relate to milling.

The General Machining Strategies Used For Milling

Basic Milling Methods

– Plane milling

– Milling groove

– Side milling

– Profiling milling

 

Advanced Milling Methods

– Slope milling

– Thread interpolation

– Cycloid milling

– Push pull profiling milling

– Plunge milling

– Contour milling

– Drilling

 

Definition Of Milling Machining Strategy

– General processing

– High speed machining

– High performance machining

– High feed processing

– Microfabrication

 

1. General processing:

It’s a general-purpose processing strategy. The ratio of cutting width to cutting depth can vary depending on the type of operation.

Tool characteristics: the tool has relatively long cutting edge and small core diameter, so there is no high requirement on accuracy.

Machine requirements: no special requirements.

Application field: have basic CNC technology, want to learn UG programming, can add QQ group 304214709, learn advanced machining method of high difficulty; The metal removal rate can only reach the general level; Applications usually include small batch size and wide range of materials.

 

2. High speed machining:

It is a machining strategy combining small radial cutting depth, high cutting speed and feed speed; According to the method used, high material removal rate and low Ra value can be achieved. The typical characteristics of this strategy are low cutting force, less heat transferred to tool and workpiece, less burr formation and high dimensional accuracy of workpiece; In high-speed machining, using faster cutting speed than ordinary machining can achieve high metal removal rate and good surface roughness.

Tool characteristics: stable (larger core diameter and shorter cutting length), clear and well formed chip space, conducive to good chip removal and coating.

Machine requirements: high speed CNC control, high speed, table feed speed.

Application: semi finishing and finishing of hardened steel (48-62 HRC) in Die & mould industry, short delivery time. This technology can also be applied to many other materials when using the right tools and advanced machining methods.

 

3. High performance processing:

It is a processing strategy that can achieve a very high metal removal rate. The typical feature of this strategy is that the cutting width is 1 times of DC, and the cutting depth is 1 ~ 1.5 times of DC, depending on the workpiece material; In high performance machining, the chip load is much higher than that of conventional machining, which can achieve high metal removal rate.

Tool characteristics: specially developed chip holding structure on the tool chip removal groove, tool tip 45 °, Small plane or tool tip arc protection, especially smooth chip space, coating, with or without side fixed handle.

Machine requirements: high stability, high power requirements, high rigid clamping system.

Application: in mass production and processing, production efficiency is a key indicator, or single product processing requiring high metal removal rate.

 

4. High feed processing:

It is a high feed machining strategy which combines full edge cutting with small cutting depth. In high feed machining, it can achieve high metal removal rate and good surface roughness by using faster feed speed than ordinary machining.

Tool characteristics: specially developed tool tip, extremely short cutting length, coating.

Machine requirements: high stability, the possibility of high feed speed.

Application fields: from mild steel to hardened steel, titanium alloy and stainless steel, it is very good as the pre-processing before high-speed machining, and it can also be used for deep cavity machining. One of the advantages of this technology is that it is very convenient for users to realize simple, safe and fast programming in cam. Using the so-called contour milling strategy, it is easy to program complex shapes without rich programming experience.

 

5. Micromachining:

It is a kind of machining strategy with very small tool diameter.

Tool characteristics: diameter range from Ø 0.1 to 2.0 mm, short cutting length, wide range of excircle diameter reduction, high precision, plating.

Machine requirements: high spindle precision, high speed, CNC, thermal stability to prevent spindle elongation.

Application: various cavity processing on many kinds of materials.

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