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Metalworking questions in this section please

 [ Total topics 335 Go to page 1, 2, 3, 4, 5 ... 34

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 Post subject: colour in the engraving?
PostPosted: Tue May 29, 2018 12:00 pm 
I often see products like these little key rings which are sheet metal with an engraved pattern and then there is something applied to leave colour in the engraving. The coloured pigment looks glossy and thick, it has a high saturation and brightness and it is also very resilient. I’ve seen glow in the dark pigment applied to engraving in the same way. What is this method of putting pigment into an engraving? Enamel or ...

Read more : colour in the engraving? | Views : 295 | Replies : 6

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 Post subject: Protecting Mild Steel
PostPosted: Thu May 24, 2018 2:08 pm 
I have previously used primer and canned spray paint on projects made from mild steel. Works well, but what are the other options? I have made a metal bench and would rather the top have some kind of protective coating or wax to stop the rust, but paint will scratch off quite quick - and probably bubble as doubtless I will end up welding the odd thing on it.

For other projects I have, is ...

Read more : Protecting Mild Steel | Views : 274 | Replies : 2

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 Post subject: Galling on Stainless steel levers
PostPosted: Tue May 22, 2018 8:15 am 
I’m building a project and it has many clamping parts using levers threaded into aluminium parts, levers into bolts and bolts into nuts. It’s outdoors a lot so I ordered Stainless steel levers, nuts and bolts.

One of the parts seized up almost immediately and this is how I came to understand galling. It was not one of the levers into the aluminium parts thank god otherwise I’d of had to scrap the whole component ...

Read more : Galling on Stainless steel levers | Views : 385 | Replies : 14

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 Post subject: Surface finish for aluminium parts?
PostPosted: Sun May 20, 2018 6:45 pm 
I have a project I’m working on with parts cut from aluminium and to see if I can save some money I’ve had some of the low tolerance parts water jet cut. The problem I have with these parts is that the CNC’d parts will have a clean milled finish and these parts being 2D cut from 15mm sheet will have the sheet finish on the faces with blemishes and scratches from handling and on ...

Read more : Surface finish for aluminium parts? | Views : 272 | Replies : 8

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 Post subject: small welding help needed
PostPosted: Tue May 15, 2018 2:03 pm 
Hi

I have some display equipment which I need to disassemble. Unfortunately it's built very awkwardly. They seem to have used some sort of specialist tool which a regular tool does not have a clearance to access.

I need to weld just 5mm tip of a secure torx bit to a flat metal piece like a philips screwdriver tip at a right angle in order to loosen this bolt. You can see in this image ...

Read more : small welding help needed | Views : 259 | Replies : 2

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 Post subject: Metal washers and spring washers
PostPosted: Sat Apr 21, 2018 6:25 pm 
I've bought a hydraulic press and the diagram on the instructions is rubbish so I don't know where to use the metal washers and spring washers so could someone me tell which way the washers should go. On the diagram it shows to put a bolt through the front of the frame then at the back use the spring washer then the metal washer then the nut but if you look at the manufacturer site ...

Read more : Metal washers and spring washers | Views : 347 | Replies : 3

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 Post subject: Sign post tube
PostPosted: Fri Apr 20, 2018 1:52 pm 
Hello,

I have 2 small aluminium plate signs arriving through the post shortly and would like people's suggestions as to the best kind of post to mount them to.

The signs are 20cm x 15cm and will have 2 x 5mm holes for mounting to a post. The posts themselves will be stuck into the landscape verge so they need to be rust proof (or rot proof) and ideally black in colour. Fig1 shows what ...

Read more : Sign post tube | Views : 693 | Replies : 17

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 Post subject: Breaking QRailing Stainless Glue
PostPosted: Mon Apr 02, 2018 1:11 pm 
Hi Folks,

I've just fitted a balustrade and had to glue a 90deg corner to the handrail, unfortunately it has pulled apart 2-3mm and glue has set. Does anyone have any suggestions on how I can break the glue so I can re-glue and re-clamp the glass?

I've tried loosening the panes and hitting with a rubber hammer & claw hammer with a protection between the stainless and the hammer face.

Any ideas?

Thanks,
Peter

Read more : Breaking QRailing Stainless Glue | Views : 439 | Replies : 2

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 Post subject: Fitting Brass feet to Copper Planter
PostPosted: Sat Mar 31, 2018 3:02 pm 
Hello,

Can anyone advise me as to the options (other than welding) to securely re-attach these feet, which I think are brass, to this copper planter? I do have a MAPP blow torch and a soldering iron if either are any use.

Any advice appreciated, Thanks

Image

Read more : Fitting Brass feet to Copper Planter | Views : 328 | Replies : 1

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 Post subject: Joining 2 metal rods for strength
PostPosted: Sun Mar 18, 2018 12:09 pm 
Hi all,

I have a chair whose tubular leg has snapped (please see photo) - it was a clean snap as I think there was an existing join during manufacture. I want to repair it but do not have the equipment or ability to weld it so was planning to insert a rod inside the two bits of tubes and use an epoxy resin to glue them in place. Due to the curvature of the ...

Read more : Joining 2 metal rods for strength | Views : 493 | Replies : 7

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 [ Total topics 335 Go to page 1, 2, 3, 4, 5 ... 34


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