Area of concern

Stewman · 01-04-2018, 03:18 PM

Is this an area to be concerned about. Looks like alot of lugers have what appear to be cracked in this area? I'm new to lugers and looking at some I have noticed this.

mrerick · 01-04-2018, 03:59 PM

That area should be milled in a curved shape. There should be no cracks in the frame in that area.

If you see a crack there, it's a damaged frame.

DonVoigt · 01-04-2018, 04:03 PM

I've never seen a frame cracked there, no reason for it to crack there.
I think it is a milling line or imperfection in the steel.

Edward Tinker · 01-04-2018, 04:52 PM

I have old eyes and even blown up, I don't see a crack?

Ed

Sergio Natali · 01-05-2018, 12:21 PM

Quote:

Originally Posted by Stewman

Is this an area to be concerned about. Looks like alot of lugers have what appear to be cracked in this area? I'm new to lugers and looking at some I have noticed this.

First and foremost I don't claim to be an expert, BUT I don't recall ever having seen a crack there.

wlyon · 01-05-2018, 01:29 PM

I'm with Ed I can't see it either. Bill

Rick W. · 01-05-2018, 01:34 PM

If you are concerned about a possible crack in metal, there are a lot of ways to discern such. A net search engine will show a lot of hits on the subject.

Two of the more simplistic are the dye and magnetic methods used in various industries. Dye can come in a spray can fwiw.

If you know a local engine builder, he might have a magnfluxing type unit.

Sonofeugene · 01-05-2018, 03:22 PM

Post higher res pix from different angles.

Eugen · 01-05-2018, 04:38 PM

If I were to say there is no crack, would it be a wise crack?

Stewman · 01-06-2018, 05:29 AM

Here is a pic fron a different gun.

Bill_in_VA · 01-06-2018, 08:07 AM

I don’t see a crack either. For what it’s worth, there’s a lot of meat there and practically no stress applied to that area of the frame,

mrerick · 01-06-2018, 10:07 AM

Stewart,
Do you actually have these guns in hand, or are you evaluating pistols for purchase from photographs alone?

I think that the thing you're seeing may be a slight ridge caused by the curve milling tool being set too deeply when removing metal.

Marc

Lugerdoc · 01-06-2018, 10:12 AM

I agree with Marc, difference milling tools used above and below this line. TH

01-04-2018, 03:18 PM	#1
Stewman User Join Date: Jun 2017 Posts: 24 Thanks: 0 Thanked 47 Times in 5 Posts	Area of concern Is this an area to be concerned about. Looks like alot of lugers have what appear to be cracked in this area? I'm new to lugers and looking at some I have noticed this. Attached Thumbnails

01-04-2018, 03:59 PM	#2
mrerick Super Moderator - Patron LugerForum Life Patron Join Date: Dec 2009 Location: Eastern North Carolina, USA Posts: 3,919 Thanks: 1,377 Thanked 3,135 Times in 1,518 Posts	That area should be milled in a curved shape. There should be no cracks in the frame in that area. If you see a crack there, it's a damaged frame. Attached Thumbnails __________________ Igitur si vis pacem, para bellum - - Therefore if you want peace, prepare for war.

01-04-2018, 04:03 PM	#3
DonVoigt User Join Date: Apr 2015 Location: near Charlotte NC Posts: 4,681 Thanks: 1,443 Thanked 4,355 Times in 2,041 Posts	I've never seen a frame cracked there, no reason for it to crack there. I think it is a milling line or imperfection in the steel. __________________ 03man(Don Voigt); Luger student and collector. Looking for DWM side plate: 69 ; Dreyse 1907 pistol K.S. Gendarmerie

01-05-2018, 01:29 PM	#6
wlyon Lifer 2X Lifetime Forum Patron Join Date: May 2005 Location: Somewhere in Montana Posts: 2,652 Thanks: 3,210 Thanked 2,613 Times in 969 Posts	I'm with Ed I can't see it either. Bill __________________ Bill Lyon

01-05-2018, 04:38 PM	#9
Eugen User Join Date: Apr 2016 Location: Newburgh,IN Posts: 793 Thanks: 400 Thanked 634 Times in 336 Posts	If I were to say there is no crack, would it be a wise crack? __________________ “God created war so that Americans would learn geography.” ― Mark Twain

01-04-2018, 04:52 PM	#4
Edward Tinker Super Moderator Eternal Lifer LugerForum Patron Join Date: Jun 2002 Location: North of Spokane, WA Posts: 15,960 Thanks: 2,062 Thanked 4,591 Times in 2,114 Posts	I have old eyes and even blown up, I don't see a crack? Ed

01-05-2018, 01:34 PM	#7
Rick W. User Join Date: Jun 2002 Posts: 339 Thanks: 81 Thanked 359 Times in 198 Posts	If you are concerned about a possible crack in metal, there are a lot of ways to discern such. A net search engine will show a lot of hits on the subject. Two of the more simplistic are the dye and magnetic methods used in various industries. Dye can come in a spray can fwiw. If you know a local engine builder, he might have a magnfluxing type unit.

01-05-2018, 03:22 PM	#8
Sonofeugene User Join Date: Oct 2013 Posts: 157 Thanks: 1 Thanked 118 Times in 64 Posts	Post higher res pix from different angles.

01-06-2018, 05:29 AM	#10
Stewman User Join Date: Jun 2017 Posts: 24 Thanks: 0 Thanked 47 Times in 5 Posts	Here is a pic fron a different gun. Last edited by Stewman; 01-02-2019 at 09:28 AM.

01-06-2018, 08:07 AM	#11
Bill_in_VA User Join Date: Nov 2013 Location: Southwest Virginia Posts: 387 Thanks: 801 Thanked 578 Times in 208 Posts	I don’t see a crack either. For what it’s worth, there’s a lot of meat there and practically no stress applied to that area of the frame, __________________ John 8:32 reive (riːv) vb (Military) (intr) dialect Scot and Northern English to go on a plundering raid [variant of reave] ˈreiver n e.g., " Some view the Border Reivers as loveable rogues."

01-06-2018, 10:07 AM	#12
mrerick Super Moderator - Patron LugerForum Life Patron Join Date: Dec 2009 Location: Eastern North Carolina, USA Posts: 3,919 Thanks: 1,377 Thanked 3,135 Times in 1,518 Posts	Stewart, Do you actually have these guns in hand, or are you evaluating pistols for purchase from photographs alone? I think that the thing you're seeing may be a slight ridge caused by the curve milling tool being set too deeply when removing metal. Marc __________________ Igitur si vis pacem, para bellum - - Therefore if you want peace, prepare for war.

01-06-2018, 10:12 AM	#13
Lugerdoc Patron LugerForum Patron Join Date: Jun 2002 Location: POB 398 St.Charles,MO. 63302 Posts: 5,089 Thanks: 6 Thanked 737 Times in 484 Posts	I agree with Marc, difference milling tools used above and below this line. TH __________________ Tom Heller POB 398 ST.Charles, MO. 63302 Tel 636-447-3006 lugerdoc@charter.net