Thanks: 0
Likes: 0
Needs Pictures: 0
Picture(s) thanks: 0
Results 1 to 14 of 14
Thread: Need a quote on these.
-
11th September 2011, 08:29 PM #1Senior Member
- Join Date
- Nov 2008
- Location
- Qld. Australia
- Posts
- 417
Need a quote on these.
Not the best drawing but I will explain what's needed. Dimensions shown for lengths and diameters. Top section where it is 10mm is actually a threaded section to attach another part and needs to be M10 X 1.5mm. There's a small relief that can be included to assist in threading to full depth if needed.
Bottom white section is an internal thread. There will be three of these. One with an M6 X1 mm thread to a depth of 35mm., second with an M8 X 1.25mm thread to a depth of 45mm and the third an M10 X 1.5mm thread to a depth of 55mm.
Material used is open to suggestions but I was thinking of maybe 4140.
Anyone interested?
Thanks
Nev
-
11th September 2011 08:29 PM # ADSGoogle Adsense Advertisement
- Join Date
- Always
- Location
- Advertising world
- Posts
- Many
-
11th September 2011, 09:35 PM #2GOLD MEMBER
- Join Date
- Jul 2010
- Location
- Melbourne
- Posts
- 7,775
Hi Nev,
Whats the tolerance?
Any reason you can't use boring old MS?
Stuart
-
11th September 2011, 09:36 PM #3Senior Member
- Join Date
- Nov 2008
- Location
- Qld. Australia
- Posts
- 417
Forgot something so here's the second drawing. There needs to be a small groove for a 1mm snap ring in the position shown as yellow on the drawing. This is 65.5mm from top of 12.95mm section of shaft and is where the centre of groove will be so top of snap ring wll be 65mm from this. Depth of groove is 1mm.
Drawing is not to scale.
Nev
-
11th September 2011, 09:57 PM #4Senior Member
- Join Date
- Nov 2008
- Location
- Qld. Australia
- Posts
- 417
Tolerance, good question. + or - 0.02mm? Is that asking too much? Snap ring groove can be +0.02mm but not under 1mm.
Not sure, as this is part of a tool that will see the internal threaded section used hundreds, maybe thousands of times and has to stand up to this, along with the ability to not be damaged under axial load.
Nev
-
11th September 2011, 11:50 PM #5GOLD MEMBER
- Join Date
- Jun 2007
- Location
- sydney
- Age
- 65
- Posts
- 3,566
4140 would be ok.
Bit of a problem with your diameter,is it 11.95 or 12.95 mm.
Is the groove 1mm deep overall giving a reduction in diameter of 1mm,or 1mm deep giving a reduction of 2mm in diameter.
The size of 11.95 or 12.95 mm,does this slide into something.
How critical is it that the 10mm thread and the internal thread are in line with each other.
Is it critical for the internal threads to be the length stated or can they be longer.
Does the internal hole need to have a flat bottom.
-
12th September 2011, 08:17 AM #6Senior Member
- Join Date
- Nov 2008
- Location
- Qld. Australia
- Posts
- 417
11.95mm2mm overall reduction on diameter.
Yes slides into tool and the snap ring just prevents it falling out but is easily removed.
Not critical but as close as possible. More important for the internal thread to be in line with the shaft.
Could be longer but prefer the lengths stated.
No.
Nev
-
12th September 2011, 08:20 AM #7Senior Member
- Join Date
- Nov 2008
- Location
- Qld. Australia
- Posts
- 417
Discovered a major flaw in the one with the 10mm internal thread. There is not enough metal in the shaft to have a 55mm depth of thread because of the snap ring position so this needs to be reduced to 45mm.
Nev
-
12th September 2011, 08:32 AM #8GOLD MEMBER
- Join Date
- Jun 2007
- Location
- sydney
- Age
- 65
- Posts
- 3,566
Will a 12mm shank drill fit in the bore.
-
12th September 2011, 08:44 AM #9Senior Member
- Join Date
- Nov 2008
- Location
- Qld. Australia
- Posts
- 417
-
12th September 2011, 08:46 AM #10GOLD MEMBER
- Join Date
- Jun 2007
- Location
- sydney
- Age
- 65
- Posts
- 3,566
Yes,can get material in 12 mm od, without having to machine .05mm would be good.
-
12th September 2011, 09:02 AM #11Senior Member
- Join Date
- Nov 2008
- Location
- Qld. Australia
- Posts
- 417
ok, just tested the bore of the tool with a 12mm transfer punch and it fits just fine. I was going by measurements on the other shafts for the tool, but they allow a fair bit of clearance.
Nev
-
12th September 2011, 09:11 AM #12GOLD MEMBER
- Join Date
- Jun 2007
- Location
- sydney
- Age
- 65
- Posts
- 3,566
The relief you refer to on the od thread is an undercut,is there any reason why this could not be 2 to 4 mm wide.
-
12th September 2011, 09:26 AM #13Senior Member
- Join Date
- Nov 2008
- Location
- Qld. Australia
- Posts
- 417
Change of plans. Eliminate the male thread on end of shaft. An internal thread of 10 X 1.5mm to a depth of 20mm on a 12mm shaft 115mm in length would I think be a better option and easier to do. I need to fit another piece to this end of shaft so that would also make it easier for me.
Can you see any problem with having the 10mm thread in the 12mm shaft regarding wall thickness that remains?
Nev
-
12th September 2011, 10:38 AM #14GOLD MEMBER
- Join Date
- Jun 2007
- Location
- sydney
- Age
- 65
- Posts
- 3,566
The only problem you will have is if you put to much side load on it,it could bend.
If you were going to screw something into it and then machine it,you would have to be careful about you depth of cut and feed rate, unless the end of the part was supported.
Similar Threads
-
A Quote
By funkychicken in forum WOODIES JOKESReplies: 1Last Post: 25th February 2008, 12:30 AM -
Quote Of The Day
By DPB in forum WOODIES JOKESReplies: 0Last Post: 1st April 2003, 11:45 AM -
Quote of the day
By Gino in forum WOODIES JOKESReplies: 1Last Post: 22nd October 2002, 08:52 PM -
a quote
By Rod Smith in forum WOODIES JOKESReplies: 0Last Post: 8th February 2002, 11:26 PM -
Quote
By oges in forum WOODIES JOKESReplies: 4Last Post: 28th November 2000, 01:01 PM