Magnesium AZ61B

Magnesium AZ61B in CNC Machining

Magnesium AZ61B is a wrought magnesium alloy in the AZ61 series. It has a low density, good strength-to-weight ratio, and excellent machinability.

The “AZ61B” designation specifies the alloy composition, with “A” representing aluminum, “Z” representing zinc, and “61” indicating the approximate percentages of these elements. In the case of AZ61B, it typically contains around 9% aluminum and 1% zinc. The letter “B” typically indicates the temper or condition of the material. Magnesium alloys are significantly lighter than aluminum and steel. They have low heat capacity, which means that heat generated during machining is less likely to be absorbed by the material.

AZ61B has good machinability, but we avoid excessively high speeds as they can lead to increased tool wear and potential ignition of chips. We use appropriate feed rates to ensure efficient material removal without causing excessive heat buildup. Some machining operations may be performed with minimal or no coolant, depending on the specific requirements and capabilities of the CNC machine. Since magnesium is flammable, we always have appropriate fire safety measures, including fire extinguishers and a safe working environment.

What is Magnesium AZ61B?

Magnesium AZ61B is composed primarily of 93% magnesium (Mg), 6% aluminum (Al), and 1% zinc (Zn). The “AZ61B” designation specifies the alloy composition, with “A” representing aluminum, “Z” representing zinc, and “61” indicating the approximate percentages, then “B” likely signifies the condition of the material.

This alloy is ideal for applications where lightweight materials with decent mechanical properties are desired. Additionally, AZ61B exhibits good corrosion resistance and weldability.