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Aluminum in machining refers to Aluminum alloys made from Aluminum (Al), with additional alloys that are usually silicon (Si), copper (Cu), magnesium (Mg), and manganese (Mn). Aluminum is a popular engineering material due to its low density (2.5 times lower than steel) and high machinability rate.
cutting edge
is developed much faster. A popular machined component made from cast aluminum is car wheels.Copper is the primary alloying element in the 2xxx series. Thus, these alloys are also commonly referred to as &#;copper alloys&#;. When heat-treated, these alloys have mechanical properties equivalent to mild steel. Less corrosion resistance is present in these alloys when compared to other aluminum series. The popular alloy in this series is , very common in the aerospace industry.
Strength: 465 Mpa
Hardness: 75 HB
Average Machinability Rate: 240%
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Aluminum 6xxx alloys have silicon and magnesium as the main alloying elements. These alloys have better machinability compared with the 2xxx series at the expense of lower strength. The most popular alloy in this series is . It is a versatile alloy found in many engineering components and is the single most popular aluminum alloy in CNC machine shops.
Strength: 300 Mpa
Hardness: 95 HB
Average Machinability Rate: 270%
The main alloying element in the 7xxx series is zinc, but it also contains copper, chromium, and magnesium. It has much higher strength and hardness than 2xxx and 6xxx but has a lower machinability rating and costs more. In this series, the popular alloy is aluminum , commonly used for mold making, marine, automotive, and defense industries.
Strength: 570 Mpa
Hardness: 150 HB
Average Machinability Rate: 170%
To get the cutting speeds for Aluminum alloys in any application, use our Speed and Feed Calculator
In many cases, the actual cutting speed will be much lower than what is possible from a machinability rate perspective. Maximum spindle speed and clamping stability may limit the actual speed.
All our discussion so far was based on carbide inserts. However, to further boost aluminum machinability, it is best to upgrade to PCD (Diamond) tipped inserts. With this type of advanced cutting material, the cutting speed can be doubled compared with carbide, provided stability, machine, and diameter are suitable for the RPM needed.
Contact us to discuss your requirements of Aluminum Sliding Patio Doors. Our experienced sales team can help you identify the options that best suit your needs.