Aluminium 7075 CNC components

Aluminium 7075 CNC components

What is the method of machining 7075 aluminium?

  • Select appropriate cutting tools such as high-speed steel, carbide, or cobalt tools for efficiently machining the workpiece.
  • Securely fasten the aluminum 7075 CNC components to the machine bed or worktable using clamps or vises.
  • Use higher cutting speeds to prevent work hardening of the aluminum, optimize productivity, and prolong tool life.
  • Use the recommended cutting parameters provided by the tool manufacturer for aluminum 7075 T7351 precision components.
  • Apply a suitable cutting fluid or coolant to the cutting area to dissipate heat and lubricate the aluminum 7075 machined parts tool.
  • Ensure effective chip removal from the cutting area to prevent chip re-cutting, tool damage, or poor surface finish.

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What is the difference between the milling & turning process?

In milling, a rotating cutting tool, typically with multiple cutting edges (called teeth), is used to remove material from the workpiece. The cutting tool moves in a perpendicular or inclined direction to the AL7075 CNC milling surface.

In turning, a single point cutting tool is employed to erase material from the 7075 alloy CNC turning workpiece.  A machine called a lathe rotates the workpiece while the cutting tool moves parallel to the workpiece.

Through the milling process, complex shapes, profiles, slots, and features on 3.4365 aluminium milling machine parts are created. Turning is primarily used for cylindrical workpieces, such as shafts, cylinders, and rings on 7075 t6 aluminum turned parts.

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Is Aluminum 7075 strong for machining?

7075 aluminium alloy lathe machine parts are known for their high strength-to-weight ratio. This ratio makes this aluminum material best for machining applications that demand strong and lightweight components.

At times, aluminum material’s high hardness can pop up some challenges and difficulties during the machining process of the part.  The high hardness quotient of 7075 T6 CNC cutting parts and components mainly causes excessive tool damage and demands more cutting force.

Employ sharp cutting tools made from materials such as high-speed steel, carbide, or cobalt alloys for effective 7075 t6 CNC machining.  These specific tool materials can sturdily withstand the high cutting forces and temperatures produced during machining.

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What are the challenges in machining 7075 aluminum?

  • This aluminum grade has a high hardness compared to other aluminum alloys, which can lead to rapid tool wear. The hardness can make it more difficult to achieve smooth and precise cuts, resulting in increased tooling costs and potential dimensional inaccuracies.
  • Machining this aluminum grade generates significant heat due to the part’s high thermal conductivity and low thermal expansion coefficient.
  • Aluminum 7075 t651 CNC parts produce long, stringy chips that can wrap around the cutting tool or workpiece and cause tool breakage.
  • The high strength and hardness of this aluminum can cause adhesive wear, whenever the material adheres to the cutting tool surface.
7075 t6 aluminum turned parts can be produced with vertical / horizontal milling process

What is the difference between aluminum 7075 CNC and casting?

In CNC machining, computer-controlled machines are used to remove material from a solid aluminum block to create the desired shape.  But, in casting, molten aluminum is poured into a mold cavity after which the material solidifies and acquires the mold shape.

Fully manufactured CNC parts exhibit excellent strength-to-weight ratios and superior fatigue resistance.  Unlike machined components, cast parts display reduced strength and resistance to fatigue.

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Remember these 7 things during the aluminum 7075 turning process

  • Choose appropriate cutting tools specifically designed for machining aluminum such as high-speed steel tools.
  • Consider tool geometry such as positive rake angles suitable for turning aluminum 7075 T651 components.
  • Determine the optimal cutting speed for aluminum based on the tooling, and machine capabilities.
  • Establish appropriate feed rates to maintain chip control and prevent excessive tool wear.
  • Apply a suitable coolant or lubrication method during turning to dissipate heat and reduce friction.
  • Securely clamp the workpiece to minimize vibrations, maintain dimensional accuracy, and ensure stability during the turning process.
  • Regularly monitor the turning process and inspect the 7075 al alloy 5 xis machine spare part for dimensional accuracy, surface finish, and signs of tool wear.