Travel (X/mm) 1800 Travel (Y/mm) 2150 Travel (Z/mm) 1250 Tool magazine yes Number of inserts in the tool magazine 228 Accessories • 1 spare electrospindle, overhauled and never used; • 200 hsk100 tools Year of construction 2015 CE marked Model emco u mill 1800 5-axis universal milling machine with 600 Nm torque (S1)

How a 5-Axis Milling Machine Works and How to Use It

A 5-axis milling machine, like the Mecof Emco UMill 1800 , works by moving the cutting tool along five axes of motion (X, Y, Z, and two rotations A and B). This allows the tool to machine the workpiece from different angles without having to manually reposition it, improving the efficiency and precision of the process.

Phases of use:

1. Mounting the workpiece: The workpiece is fixed to the work table.
2. Programming: The CNC (Computer Numerical Control) program that controls the milling machine's movements is loaded. The program is developed using CAD/CAM software.
3. Machining: The milling machine performs the machining according to the program, moving the tool along the five axes to create the desired shape.
4. Quality Control: Once the machining is complete, the part is removed and inspected for accuracy and compliance with specifications.

Types of Existing Milling Machines

Milling machines can be classified according to the number of axes and specific applications:

1. 3-axis milling machine: Movements along the X, Y and Z axes. Used for simple machining on planes.
2. 4-Axis Milling Machine: Adds a rotary axis, allowing four-sided machining without repositioning the workpiece.
3. 5-axis milling machine: Allows for extremely complex machining operations, thanks to movements along 5 simultaneous axes (X, Y, Z, and two rotary axes).

Workable Materials

The Mecof Emco UMill 1800 can process a wide range of materials, including:

• Steel
• Aluminum
• Titanium
• Cast iron
• Composite materials (e.g. carbon fiber)
• Industrial plastic

The 5-axis milling machine is particularly suitable for processing materials that are difficult to machine with traditional machines, such as special alloys used in the aerospace industry.

Reciprocating Machinery

While versatile, a 5-axis milling machine isn't always the only option for complex machining operations. Here are some alternative machines:

• 3 or 4-axis CNC machines: Suitable for less complex machining operations or with lower precision requirements.
• 5-Axis Lathe: Ideal for producing complex cylindrical parts with curved surfaces.
• Industrial 3D printers: For the additive manufacturing of complex components, especially for prototyping.
• Electrical Discharge Machining (EDM): Used to machine hard or difficult-to-mill materials with extreme precision.

Calculations to Optimize Operation

Optimizing the operation of a 5-axis milling machine like the Mecof Emco UMill 1800 requires attention to several parameters:

• Cutting speed (V): It is determined based on the material and the tool, calculated with the formula V=π⋅D⋅n1000V = \frac{π \cdot D \cdot n}{1000} $V$ $=$ 1000 π ⋅ D ⋅ n ​, D is the diameter of the tool and n is the spindle speed in RPM.
• Feed per tooth (fz): Determines the tool feed per spindle revolution, calculated as f=fz⋅Z⋅nf = fz \cdot Z \cdot n $f$ $=$ $f$ $z$ $\cdot$ $Z$ $\cdot$ $n$ , where Z is the number of teeth in the tool.
• Depth of cut (ap): Amount of material removed per pass, directly influencing the power required.
• Machining strategy: Using machining strategies such as spiral or helical milling can improve the load distribution on the tool and reduce machining time.

Why You Should Buy a Used Milling Machine (Mecof Emco UMill 1800)

Buying a used 5-axis milling machine like the Mecof Emco UMill 1800 can offer several advantages:

1. Lower cost: Buying a used machine saves you money compared to buying a new one by reducing your initial investment.
2. Machine already run-in: A used machine has passed the initial run-in phase and can be put into production immediately.
3. Reliability: The Mecof Emco UMill 1800 is known for its robustness and precision. With proper maintenance, it can provide years of reliable service.
4. Spare parts and service available: Spare parts and service for this model are readily available, thanks to the reputation of the Emco brand.
5. Ready availability: Used machines are immediately available, with no waiting times for the production and delivery of a new machine.

In conclusion, a 5-axis milling machine like the Mecof Emco UMill 1800 is an excellent choice for those who need complex machining on different materials. Purchasing a used model can be a smart investment, especially for companies looking to balance cost and quality without compromising production capacity.