Bevel ?

[DanielParticipant @daniel]

Perhaps a semantic question, but could anyone elucidate as to the difference between a chamfer and a bevel ?

It's probably not important, but has been bothering me of late.

Daniel

[DanielParticipant @daniel]

[Michael GilliganParticipant @michaelgilligan61133]

A very good question, Daniel

Wikipedia offers a reasonable distinction: **LINK**

https://en.m.wikipedia.org/wiki/Bevel

MichaelG.

[Brian Sweeting 2Participant @briansweeting2]

It seems that it can be an open ended answer depending on whether you use the words as a noun or an adjective.

Found a good description here  **LINK**

You might say that a bevelled edge is found at the end of a wood chisel whilst you would chamfer the edge of a turned piece to remove the sharp edge.

[JasonBModerator @jasonb]

Posted by Brian Sweeting on 02/01/2018 13:16:24:

You might say that a bevelled edge is found at the end of a wood chisel whilst you would chamfer the edge of a turned piece to remove the sharp edge.

The "Bevel edge" of wood chisels is along the back and does not refer to the primary and secondary bevels that form the cutting edge

[Neil WyattModerator @neilwyatt]

I'll buy Michael's link. It fits with the idea that you chamfer a corner and bevel an edge.

[Richard S2Participant @richards2]

As my Father described to me, a Bevel to be a relieved edge of unequal angles i.e. 44 deg or less, say on the edge/corners of a Mirror.

A chamfer to me is an equally relieved flat edge of 2 joining faces of usually 90 degrees. i.e as on a single or double chamfered Nut

A Fillet is an edge that is relieved in a rounded form.

[DanielParticipant @daniel]

Thank you all for the input, which demands some digestion.

It's the old hole /pit question all over.

Cooking children's dinner at the mo', but will digest.

Thank you all

[MWParticipant @mw27036]

My Clarke Cl430m lathe manual calls the topslide a "bevel cutting" feature.

Michael W

[JohnFParticipant @johnf59703]

All the engineering drawings I have ever seen not one has shown a bevel, it has always been a 30deg Cham or a 45deg cham etc etc.

To me a bevel would be as on a mirror or small window pane,

I think it is more than likely its the terminology used in different trades to describe the same item e.g. in the unmaking trade a screw is a pin, a round rod or spindle is a wire, think about clocks and watches and the nomenclature changes again !

Any more thoughts ?

Edited By JohnF on 02/01/2018 21:17:05

[Brian Sweeting 2Participant @briansweeting2]

Posted by JasonB on 02/01/2018 13:20:12:

Posted by Brian Sweeting on 02/01/2018 13:16:24:

 

You might say that a bevelled edge is found at the end of a wood chisel whilst you would chamfer the edge of a turned piece to remove the sharp edge.

The "Bevel edge" of wood chisels is along the back and does not refer to the primary and secondary bevels that form the cutting edge

I fully agree about bevel edged chisels which is why I said 'found at the end' to which you then confirm by talking about the primary and secondary bevels.

But if being pedantic then you have also confirmed the description of a bevel.

[DanielParticipant @daniel]

Well …

Thank you Micheal and Brian for the links.

Does it help ? Not sure and still digesting.

For all practical purposes it would seem that the terms are largely interchangeable, but Brian's link casts a serious doubt. There would appear to be quite succinct differences in their definitions.

Not intending to troll, but I love these subtle differences in our vocabulary.

Daniel

[HopperParticipant @hopper]

When you knock the sharp edge off something by filing or machining a small flat along it, it's a chamfer. When you machine one side of a piece of metal at an angle, it's a bevel.

[Ady1Participant @ady1]

bevvy is cheaper than champers

[Bill PudneyParticipant @billpudney37759]

I'm with Hopper. Then there is a "chamfer" at an angle other than 45 degrees. During my apprenticeship I was told that this is a "snape", however it was on the Isle of Wight and I've never heard it anywhere else!!

cheers

Bill

[jason udallParticipant @jasonudall57142]

I guess this is a bit of a pointless ( though interesting nonetheless) discussion. ..drawings will clarify instantly the dimension. .
But just think of this..a screw is fitted to a machine…and then for reasons it is removed put to one side..The hole is drilled through clearance and the screw replaced..with a nut at far end…that screw is now a BOLT….
yes I know drilling out and adding nut is bodgy but it serves to illustrate.
English (even technical- roll yer sleeves up and get on with it- English) shows its long history in the oddities fossilised into it….

[Bill PudneyParticipant @billpudney37759]

I've always understood that a screw was threaded all the way to the head and a bolt only part way.

cheers

Bill

[MWParticipant @mw27036]

Posted by Bill Pudney on 04/01/2018 08:47:21:

I've always understood that a screw was threaded all the way to the head and a bolt only part way.

cheers

Bill

What does that make a stud then?

[not done it yetParticipant @notdoneityet]

I've always understood that a screw was threaded all the way to the head and a bolt only part way

I’ve always understood that bolts have nuts. Screws need not be threaded all the way along the shank, but bolts are not, as they need to be plain and sized for the hole. Cap screws may be threaded to the head as are coach screws (but not coach bolts).

[Michael GilliganParticipant @michaelgilligan61133]

Posted by Michael-w on 05/01/2018 08:23:22:

What does that make a stud then?

.

A healthy, virile, male.

MichaelG.

[blowlampParticipant @blowlamp]

All chamfers are bevels, but not all bevels are chamfers.

Martin.

[duncan webster 1Participant @duncanwebster1]

Posted by JohnF on 02/01/2018 21:15:51:

I think it is more than likely its the terminology used in different trades to describe the same item e.g. in the unmaking trade a screw is a pin, a round rod or spindle is a wire, think about clocks and watches and the nomenclature changes again !

So what's the unmaking trade? My offspring are all good at unmaking (breaking) things, perhaps they could get paid for it.

[SillyOldDufferModerator @sillyoldduffer]

Posted by Michael Gilligan on 05/01/2018 12:41:33:

Posted by Michael-w on 05/01/2018 08:23:22:

What does that make a stud then?

.

A healthy, virile, male.

MichaelG.

Well that woke me up. I jumped to the conclusion that Michael was obviously thinking of me. Sad isn't it.

Anyway, Brian's link refers to 'the authority in all things relating to words, Merriam-Webster,' Oh dear. Oh dear, oh dear, oh dear! Merriam Webster is an american dictionary. They do their best poor things, but what with sox, johns, theaters, sidewalks, pants, rainchecks, math and vajayjays it's clear they don't talk the Queen's English. I've also heard they spit on the floor and are rude to the servants.

I looked chamfer and bevel up in the Shorter Oxford Dictionary. The meanings are closely related. The second meaning of bevel is 'An oblique or slant especially more than a right angle'. A chamfer is 'The surface produced by bevelling off a square edge or corner equally on both sides'. Curiously, as a word, 'chamfer' is later than 'chamfering' which derived directly from the French 'chamferein'. Ou la la.

Chamfer can also mean a groove or channel and there are Fifty Shades of Bevel. If you want to be ultra-erudite, to make a chamfer or bevel is to 'chamfret'. There's a tool called a Bevel, but no tool called a Chamfer.

Clear as mud!

Dave

[Martin King 2Participant @martinking2]

There is such a tool as a chamfer plane, STANLEY Model 72; quite rare and sought after:

Martin

[Howard LewisParticipant @howardlewis46836]

My four penn'orth.

A Setscrew is threaded all the way up to the head.

A Bolt has a plain shank between the head and the thread.

(A Fitted Bolt has a precision diameter shank which is effectively used as a dowel to locate one part to another precisely)

A Stud is usually threaded at both ends, but has no head with which to rotate it. The threads may meet, be continuous, or be separated by a plain shank.

Howard

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