On a vertical mill without an automatic table, what is the best technique for milling?

Conventional milling is considered the best technique for milling on a vertical mill without an automatic table due to the cutting direction involved. In conventional milling, the cutter rotates against the direction of the machine table’s movement. This means that the cutting forces push the workpiece down onto the table, which is particularly advantageous when working with machines that lack automatic table control. The downward force helps to stabilize the workpiece and reduces the risk of it lifting or shifting during the cutting process.

This technique is especially effective for machining harder materials or when using older or less rigid milling machines where stability is a concern. In contrast, climb milling can lead to issues such as workpiece lifting and less control over the material, making it less suitable for setups without automated features. Thus, the preference for conventional milling in this context is rooted in its ability to maintain workpiece stability against the cutting forces, ensuring a safer and more effective milling operation.