Category:Threading Tools - Revision history

DT Online at 11:57, 13 March 2016

2016-03-13T11:57:15Z

← Older revision		Revision as of 11:57, 13 March 2016
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	A lathe tool or '''Router''' with a suitably shaped cutter can be mounted on the '''Cross Slide''' and used to cut threads in dense and fine-grained woods ''(e.g. such as: beech, cherry and pear)''. Coarser grain timbers, such as pine and oak are unsuitable except for large diameter threads. Soaking the wood to be threaded in oil ''(e.g. linseed, olive or vegetable oil)'' and wrapping it in ‘cling film’ overnight, can reduce the risk of the tips of the threads breaking off.		A lathe tool or '''Router''' with a suitably shaped cutter can be mounted on the '''Cross Slide''' and used to cut threads in dense and fine-grained woods ''(e.g. such as: beech, cherry and pear)''. Coarser grain timbers, such as pine and oak are unsuitable except for large diameter threads. Soaking the wood to be threaded in oil ''(e.g. linseed, olive or vegetable oil)'' and wrapping it in ‘cling film’ overnight, can reduce the risk of the tips of the threads breaking off.


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	[[Category:Tools and Equipment]]		[[Category:Tools and Equipment]]

DT Online at 11:56, 13 March 2016

2016-03-13T11:56:52Z

← Older revision		Revision as of 11:56, 13 March 2016
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	[[File:LatheScrewCutting.png\|300px\|right]]		[[File:LatheScrewCutting.png\|300px\|right]]
	A suitably shaped lathe tool can be clamped into a '''[[Centre Lathe]]''' '''Toolpost''' or '''Cross Slide''' and an external thread cut making use of the '''Leadscrew''' gearing to advance the tool one screw thread '''Pitch''' for each revolution of the lathe. ~~Simlarly~~, a '''Boring Tool''' can be shaped and used to cut internal threads.		A suitably shaped lathe tool can be clamped into a '''[[Centre Lathe]]''' '''Toolpost''' or '''Cross Slide''' and an external thread cut making use of the '''Leadscrew''' gearing to advance the tool one screw thread '''Pitch''' for each revolution of the lathe. Similarly, a '''Boring Tool''' can be shaped and used to cut internal threads.


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	[[Category:Tools and Equipment]]		[[Category:Tools and Equipment]]

DT Online at 08:47, 16 November 2015

2015-11-16T08:47:21Z

← Older revision		Revision as of 08:47, 16 November 2015
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	A lathe tool or '''Router''' with a suitably shaped cutter can be mounted on the '''Cross Slide''' and used to cut threads in dense and fine-grained woods ''(e.g. such as: beech, cherry and pear)''. Coarser grain timbers, such as pine and oak are unsuitable except for large diameter threads. Soaking the wood to be threaded in oil ''(e.g. linseed or vegetable oil)'' and wrapping it in ‘cling film’ overnight, can reduce the risk of the tips of the threads breaking off.		A lathe tool or '''Router''' with a suitably shaped cutter can be mounted on the '''Cross Slide''' and used to cut threads in dense and fine-grained woods ''(e.g. such as: beech, cherry and pear)''. Coarser grain timbers, such as pine and oak are unsuitable except for large diameter threads. Soaking the wood to be threaded in oil ''(e.g. linseed, olive or vegetable oil)'' and wrapping it in ‘cling film’ overnight, can reduce the risk of the tips of the threads breaking off.



	[[Category:Tools and Equipment]]		[[Category:Tools and Equipment]]

DT Online at 08:46, 16 November 2015

2015-11-16T08:46:51Z

← Older revision		Revision as of 08:46, 16 November 2015
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	A '''Router''' with a suitably shaped cutter can be mounted on the '''Cross Slide''' and used to cut threads in dense and fine-grained woods ''(e.g. such as: beech, cherry and pear)''. Coarser grain timbers, such as pine and oak are unsuitable except for large diameter threads. Soaking the wood to be threaded in oil ''(e.g. linseed or vegetable oil)'' and wrapping it in ‘cling film’ overnight, can reduce the risk of ~~tear-out at~~ the tips of the threads.		A lathe tool or '''Router''' with a suitably shaped cutter can be mounted on the '''Cross Slide''' and used to cut threads in dense and fine-grained woods ''(e.g. such as: beech, cherry and pear)''. Coarser grain timbers, such as pine and oak are unsuitable except for large diameter threads. Soaking the wood to be threaded in oil ''(e.g. linseed or vegetable oil)'' and wrapping it in ‘cling film’ overnight, can reduce the risk of the tips of the threads breaking off.



	[[Category:Tools and Equipment]]		[[Category:Tools and Equipment]]

DT Online at 08:02, 16 November 2015

2015-11-16T08:02:20Z

← Older revision		Revision as of 08:02, 16 November 2015
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	~~[[File:LatheScrewCutting.png\|300px\|right]]~~
	'''[[Nuts, Bolts and Washers\|Screwthreads]]''' may be cut by hand using '''[[Taps and Dies]]''' or on a '''[[Centre Lathe]]''' which is fitted with a screw-cutting gearbox.		'''[[Nuts, Bolts and Washers\|Screwthreads]]''' may be cut by hand using '''[[Taps and Dies]]''' or on a '''[[Centre Lathe]]''' which is fitted with a screw-cutting gearbox.


	A suitably shaped lathe tool can be clamped into a '''[[Centre Lathe]]''' '''Toolpost''' or '''Cross Slide''' and an external thread cut making use of the '''Leadscrew''' gearing to advance the tool one screw thread '''Pitch''' for each revolution of the lathe. Simlarly, a '''Boring Tool''' can be shaped and used to cut internal threads ~~or a '''Router''' with a suitably shaped cutter used to cut threads in wood~~.		[[File:LatheScrewCutting.png\|300px\|right]]
			A suitably shaped lathe tool can be clamped into a '''[[Centre Lathe]]''' '''Toolpost''' or '''Cross Slide''' and an external thread cut making use of the '''Leadscrew''' gearing to advance the tool one screw thread '''Pitch''' for each revolution of the lathe. Simlarly, a '''Boring Tool''' can be shaped and used to cut internal threads.


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	~~Threads~~ can ~~also~~ be cut in dense and fine-grained woods ''(e.g. such as: beech, cherry and pear)''. Coarser grain timbers, such as pine and oak are unsuitable except for large diameter threads. Soaking the wood to be threaded in oil ''(e.g. linseed or vegetable oil)'' and wrapping it in ‘cling film’ overnight, can reduce the risk of tear-out at the tips of the threads.		A '''Router''' with a suitably shaped cutter can be mounted on the '''Cross Slide''' and used to cut threads in dense and fine-grained woods ''(e.g. such as: beech, cherry and pear)''. Coarser grain timbers, such as pine and oak are unsuitable except for large diameter threads. Soaking the wood to be threaded in oil ''(e.g. linseed or vegetable oil)'' and wrapping it in ‘cling film’ overnight, can reduce the risk of tear-out at the tips of the threads.



	[[Category:Tools and Equipment]]		[[Category:Tools and Equipment]]

DT Online: Added category link

2015-11-15T13:07:54Z

Added category link

← Older revision		Revision as of 13:07, 15 November 2015
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	Threads can also be cut in dense and fine-grained woods ''(e.g. such as: beech, cherry and pear)''. Coarser grain timbers, such as pine and oak are unsuitable except for large diameter threads. Soaking the wood to be threaded in oil ''(e.g. linseed or vegetable oil)'' and wrapping it in ‘cling film’ overnight, can reduce the risk of tear-out at the tips of the threads.		Threads can also be cut in dense and fine-grained woods ''(e.g. such as: beech, cherry and pear)''. Coarser grain timbers, such as pine and oak are unsuitable except for large diameter threads. Soaking the wood to be threaded in oil ''(e.g. linseed or vegetable oil)'' and wrapping it in ‘cling film’ overnight, can reduce the risk of tear-out at the tips of the threads.



			[[Category:Tools and Equipment]]

DT Online: Added text and image

2015-11-15T13:06:43Z

Added text and image

← Older revision		Revision as of 13:06, 15 November 2015
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	'''[[Nuts, Bolts and Washers\|Screwthreads]]''' may be cut by hand using '''[[Taps and Dies]]''' or on a '''[[Centre Lathe]]''' which is fitted with a screw-cutting gearbox		[[File:LatheScrewCutting.png\|300px\|right]]
			'''[[Nuts, Bolts and Washers\|Screwthreads]]''' may be cut by hand using '''[[Taps and Dies]]''' or on a '''[[Centre Lathe]]''' which is fitted with a screw-cutting gearbox.


	A suitably shaped lathe tool~~, or a '''Router''' with a similar cutter,~~ can be clamped into a '''[[Centre Lathe]]''' '''Toolpost''' or '''Cross Slide''' and an external thread cut making use of the '''Leadscrew''' gearing to advance the tool ~~or cutter~~ one screw thread '''Pitch''' for each revolution of the lathe. Simlarly, a '''Boring Tool''' can be shaped and used to cut internal threads.		A suitably shaped lathe tool can be clamped into a '''[[Centre Lathe]]''' '''Toolpost''' or '''Cross Slide''' and an external thread cut making use of the '''Leadscrew''' gearing to advance the tool one screw thread '''Pitch''' for each revolution of the lathe. Simlarly, a '''Boring Tool''' can be shaped and used to cut internal threads or a '''Router''' with a suitably shaped cutter used to cut threads in wood.


	As with many cutting operations, a cutting lubricant can be helpful when cutting a screwthread, either by hand or machine. But not all metals need an extra lubricant to be applied. The different lubricants can be summarised as follows:		As with many cutting operations in metal, a cutting lubricant can be helpful when cutting a screwthread, either by hand or machine. But not all metals need an extra lubricant to be applied. The different lubricants can be summarised as follows:
	* [https://en.wikipedia.org/wiki/Cast_iron Cast Iron] - this should be cut dry because, by its nature ''(i.e. contains in excess of 2% Carbon)'', the free Carbon within it acts as a cutting lubricant.		* [https://en.wikipedia.org/wiki/Cast_iron Cast Iron] - this should be cut dry because, by its nature ''(i.e. contains in excess of 2% Carbon)'', the free Carbon within it acts as a cutting lubricant.
	* [https://en.wikipedia.org/wiki/Steel Steel] - use oil-based [https://en.wikipedia.org/wiki/Cutting_fluid Cutting Fluid] - ideally in paste form.		* [https://en.wikipedia.org/wiki/Steel Steel] - use oil-based [https://en.wikipedia.org/wiki/Cutting_fluid Cutting Fluid] - ideally in paste form.
	* [https://en.wikipedia.org/wiki/Non-ferrous_metal Non-Ferrous metals] - in general, [https://en.wikipedia.org/wiki/White_spirit White Spirit] can be used.		* [https://en.wikipedia.org/wiki/Non-ferrous_metal Non-Ferrous metals] - in general, [https://en.wikipedia.org/wiki/White_spirit White Spirit] can be used.


			Threads can also be cut in dense and fine-grained woods ''(e.g. such as: beech, cherry and pear)''. Coarser grain timbers, such as pine and oak are unsuitable except for large diameter threads. Soaking the wood to be threaded in oil ''(e.g. linseed or vegetable oil)'' and wrapping it in ‘cling film’ overnight, can reduce the risk of tear-out at the tips of the threads.

DT Online: Changed text

2015-11-15T12:54:56Z

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← Older revision		Revision as of 12:54, 15 November 2015
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	'''[[Nuts, Bolts and Washers\|Screwthreads]]''' may be cut by hand using ~~[https://en.wikipedia.org/wiki/Tap_and_die~~ '''Taps and Dies'''].		'''[[Nuts, Bolts and Washers\|Screwthreads]]''' may be cut by hand using '''[[Taps and Dies]]''' or on a '''[[Centre Lathe]]''' which is fitted with a screw-cutting gearbox


	As with many cutting operations, a cutting lubricant can be helpful when cutting a screwthread. But not all metals need an extra lubricant to be applied. The different lubricants can be summarised as follows:		A suitably shaped lathe tool, or a '''Router''' with a similar cutter, can be clamped into a '''[[Centre Lathe]]''' '''Toolpost''' or '''Cross Slide''' and an external thread cut making use of the '''Leadscrew''' gearing to advance the tool or cutter one screw thread '''Pitch''' for each revolution of the lathe. Simlarly, a '''Boring Tool''' can be shaped and used to cut internal threads.


			As with many cutting operations, a cutting lubricant can be helpful when cutting a screwthread, either by hand or machine. But not all metals need an extra lubricant to be applied. The different lubricants can be summarised as follows:
	* [https://en.wikipedia.org/wiki/Cast_iron Cast Iron] - this should be cut dry because, by its nature ''(i.e. contains in excess of 2% Carbon)'', the free Carbon within it acts as a cutting lubricant.		* [https://en.wikipedia.org/wiki/Cast_iron Cast Iron] - this should be cut dry because, by its nature ''(i.e. contains in excess of 2% Carbon)'', the free Carbon within it acts as a cutting lubricant.
	* [https://en.wikipedia.org/wiki/Steel Steel] - use oil-based [https://en.wikipedia.org/wiki/Cutting_fluid Cutting Fluid] - ideally in paste form.		* [https://en.wikipedia.org/wiki/Steel Steel] - use oil-based [https://en.wikipedia.org/wiki/Cutting_fluid Cutting Fluid] - ideally in paste form.
	* [https://en.wikipedia.org/wiki/Non-ferrous_metal Non-Ferrous metals] - in general, [https://en.wikipedia.org/wiki/White_spirit White Spirit] can be used.		* [https://en.wikipedia.org/wiki/Non-ferrous_metal Non-Ferrous metals] - in general, [https://en.wikipedia.org/wiki/White_spirit White Spirit] can be used.


	When cutting a screwthread with either a '''Tap''' or a '''Die''' it is commonly accepted practice to advance one turn forwards then half a turn in reverse to break off the chip being cut. It is more important however, to '''''feel''''' the cutting action and gain a sense of when to cut and when to go backwards to cut off the chip - this may vary with the size of thread being cut and choice of material. Gaining such a '''''feel''''' for the cutting action is most important when using '''Taps''' to cut a thread inside a ''blind hole''. The danger is that if too much force is applied as the '''Bottoming Tap''' reaches the bottom of the hole, it may break. Note also that chips of metal will fall to the bottom of the hole during the cutting operation and these need frequently to be cleared out.

DT Online: Created Category

2015-11-15T12:48:06Z

Created Category

New page

'''[[Nuts, Bolts and Washers|Screwthreads]]''' may be cut by hand using [https://en.wikipedia.org/wiki/Tap_and_die '''Taps and Dies'''].

As with many cutting operations, a cutting lubricant can be helpful when cutting a screwthread. But not all metals need an extra lubricant to be applied. The different lubricants can be summarised as follows:
* [https://en.wikipedia.org/wiki/Cast_iron Cast Iron] - this should be cut dry because, by its nature ''(i.e. contains in excess of 2% Carbon)'', the free Carbon within it acts as a cutting lubricant.
* [https://en.wikipedia.org/wiki/Steel Steel] - use oil-based [https://en.wikipedia.org/wiki/Cutting_fluid Cutting Fluid] - ideally in paste form.
* [https://en.wikipedia.org/wiki/Non-ferrous_metal Non-Ferrous metals] - in general, [https://en.wikipedia.org/wiki/White_spirit White Spirit] can be used.

When cutting a screwthread with either a '''Tap''' or a '''Die''' it is commonly accepted practice to advance one turn forwards then half a turn in reverse to break off the chip being cut. It is more important however, to '''''feel''''' the cutting action and gain a sense of when to cut and when to go backwards to cut off the chip - this may vary with the size of thread being cut and choice of material. Gaining such a '''''feel''''' for the cutting action is most important when using '''Taps''' to cut a thread inside a ''blind hole''. The danger is that if too much force is applied as the '''Bottoming Tap''' reaches the bottom of the hole, it may break. Note also that chips of metal will fall to the bottom of the hole during the cutting operation and these need frequently to be cleared out.