Hob: Difference between revisions
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The process of cutting a gear calls for either an involute cutter or a gear hob. The advantage of a hob is that it can easily be cut from carbon steel on a lathe and milling machine. Once cut, the hob is then heat treated (even mildly will suffice) so that it can more easily cut the gear material. There are a few types of hobs, namely helical and what I will, for lack of machining experience, call a parallel hob. Out of simplicity, this article will focus on the so-called 'parallel hob' as it can be used on a standard vertical mill and doesn't require a hobbing mill. | The process of cutting a gear calls for either an involute cutter or a gear hob. The advantage of a hob is that it can easily be cut from carbon steel on a lathe and milling machine. Once cut, the hob is then heat treated (even mildly will suffice) so that it can more easily cut the gear material. There are a few types of hobs, namely helical and what I will, for lack of machining experience, call a parallel hob. Out of simplicity, this article will focus on the so-called 'parallel hob' as it can be used on a standard vertical mill and doesn't require a hobbing mill. | ||
Revision as of 03:55, 2 May 2011
This page is currently under construction and might undergo drastic changes within a short span of time.
http://en.wikipedia.org/wiki/Hobbing
This article is intended to go with Involute Gear
The process of cutting a gear calls for either an involute cutter or a gear hob. The advantage of a hob is that it can easily be cut from carbon steel on a lathe and milling machine. Once cut, the hob is then heat treated (even mildly will suffice) so that it can more easily cut the gear material. There are a few types of hobs, namely helical and what I will, for lack of machining experience, call a parallel hob. Out of simplicity, this article will focus on the so-called 'parallel hob' as it can be used on a standard vertical mill and doesn't require a hobbing mill.