MG34 Sem Auto Tutorial

Ask your build questions here. Welding, assembly, etc.
Post Reply
User avatar
Pirate
General
General
Posts: 1212
Joined: Mon Apr 25, 2005 2:32 pm
Location: 1/2 mile from the beach in S Fla.

MG34 Sem Auto Tutorial

Post by Pirate »

I have started the new tutorial for doing the receiver reweld with my weld jig.

Here is the link: http://www.projectguns.com/mg342.html

I am redoing all the photos and need to get a couple more parts to finish the receiver so it will take a couple of weeks to complete.
As soon as it is done I will also do one for the bolt and grip. TNW sells a kit with all the parts you need to do the bolt and grip and the trip lever. it comes with drawings and instructions. It is $180.00, a real bargain. the trip lever is not in the photo.

use this thread for questions.
Attachments
tnwsemikit.jpg
User avatar
Pirate
General
General
Posts: 1212
Joined: Mon Apr 25, 2005 2:32 pm
Location: 1/2 mile from the beach in S Fla.

Re: MG34 Sem Auto Tutorial

Post by Pirate »

I added to the tutorial today.

Also I corrected the welding rod type, it is E308 not E301

As soon as I finish the welding part I will see what I can do about tutorials for the trigger and bolt.
User avatar
Pirate
General
General
Posts: 1212
Joined: Mon Apr 25, 2005 2:32 pm
Location: 1/2 mile from the beach in S Fla.

Re: MG34 Sem Auto Tutorial

Post by Pirate »

the receiver tutorial is finished.
Bil
Field Marshal
Field Marshal
Posts: 4873
Joined: Sun Nov 26, 2006 10:21 pm
Location: Brookline,VT

Re: MG34 Sem Auto Tutorial

Post by Bil »

Pirate-thank you-that is great.Clear pics,lots of info.I appreciate all the work you put into this. ---bil
"I dream of a world where I can buy alcohol,tobacco and firearms from the same drive-up window,and use them all on the way home from work!" Dogbert
User avatar
Pirate
General
General
Posts: 1212
Joined: Mon Apr 25, 2005 2:32 pm
Location: 1/2 mile from the beach in S Fla.

Re: MG34 Sem Auto Tutorial

Post by Pirate »

Bil wrote:Pirate-thank you-that is great.Clear pics,lots of info.I appreciate all the work you put into this. ---bil
Thanks, now you got the jig and instructions lets see some finished rewelds!!
BELTLEAD

Re: MG34 Sem Auto Tutorial

Post by BELTLEAD »

Pirate, Thank you.
Also for the nice tutorial you provided. I feel like I'm at a gun college (Gun projects 101).You are the Gun Professor. :)
Abominog
Major
Major
Posts: 314
Joined: Tue Apr 05, 2005 1:03 pm

Re: MG34 Sem Auto Tutorial

Post by Abominog »

Pirate wrote:I added to the tutorial today.

Also I corrected the welding rod type, it is E308 not E301

As soon as I finish the welding part I will see what I can do about tutorials for the trigger and bolt.

I just asked my welder about this and he says 308 is stainless. That strikes me as odd, as why would one want to use stainless on a MG34 semi build? AFAIK it won't match when finished because of the different metal, and I'm thinking "stainless"?

Of course, I know nothing so any insight would be great.
FNG
ironsights
Friendly New Guy
Friendly New Guy
Posts: 4
Joined: Thu Nov 20, 2014 12:32 pm
Anti-spam: Mg42

Re: MG34 Sem Auto Tutorial

Post by ironsights »

It helps to think of steels in terms of their content rather than whether they're classed as stainless or not. 308L rod is commonly used to repair iron parts; it has very low carbon content so there is less martensite formed in the heat affected zone. The MG34 receiver is ductile iron rather than steel and has a higher carbon content so using mild steel filler would make the weld harder to work, brittle and prone to cracking.
You're right though, it may be harder to get a consistent finish.
Post Reply