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# Metal Machining: Theory of Milling

Created by
@GreatHawkSEye

Swivel

### What distinguishes a universal milling machine from a plain milling machine?

Ability to perform angular and helical milling operations

### What type of milling machine has the cutter spindle positioned vertically?

Universal vertical milling machine

### What distinguishes a peripheral milling operation from a face milling operation?

<p>In peripheral milling, the cutting edges are on the outside periphery of the cutter, while in face milling, they are on the end and outside periphery.</p> Signup and view all the answers

### What is the main function of an arbor in milling operations?

<p>To mount and key cutters that have a bore at the center in milling machines.</p> Signup and view all the answers

### What is a defining feature of a universal milling machine compared to other types of milling machines?

<p>It has a knee that can be adjusted up and down for vertical alignment of the spindle.</p> Signup and view all the answers

### What is the formula to convert spindle rotation speed to spindle velocity in milling?

<p>V = 7.1πD</p> Signup and view all the answers

### How is the feed rate in milling calculated when given the feed per cutter tooth?

<p>fr = NtNf</p> Signup and view all the answers

### What is the formula to determine the material removal rate in a slab-milling operation?

<p>RMR = wdf𝑟</p> Signup and view all the answers

### How is the approach distance calculated to fully engage the cutter in a slab cutting operation?

<p>A = d(D-d)</p> Signup and view all the answers

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