PDKJ,born for metal welding

Accumulated services for 5000 + enterprises
65000 + welding workpiece cases
Senior R & D and rapid service team
three day rapid process samples
national high tech enterprises
15 years of focus on welding field

The best quality The best price

China Compulsory Certification(3C)
CE export certification
100% qualified inspection
three years warranty of main frame
77 patented inventions
ISO9001 international quality system certification

Welding Issues,Just PDKJ

Spot welding, projection welding, seam welding, touch welding
T joint, lap joint, corner joint,butt joint, edge joint
7*24 Online service
15 minutes quick response
detailed operation instruction and video
Perfect pre-sale, in sale and after-sale service

Spot Welding Machine for Tig brazing some Cast Stl to Med C Stl

Spot Welding Machine for Tig brazing some Cast Stl to Med C Stl

Welding Automation for Tig brazing some Cast Stl to Med C Stl

laser Welding Machine for Tig brazing some Cast Stl to Med C Stl

Welding Automation for Tig brazing some Cast Stl to Med C Stl

Welding Automation for Tig brazing some Cast Stl to Med C Stl

Platform Spot Welding Machine for Tig brazing some Cast Stl to Med C Stl

Platform Spot Welding Machine for Tig brazing some Cast Stl to Med C Stl

Tig brazing some Cast Stl to Med C Stl


Tue, 31 Aug 2021 16:16:12 GMT
I had to make some wheel spacers this week for a job.  Once the spacer's are installed on the hubs it becomes very obvious that the stud length is now to short and the they need to be replaced.Therefore we need to pop out the old studs and replace them with longer units. The simplest and most effective replacement for the studs are grade 8 bolts.  One issue with the bolt upgrade is that we need to keep them from spinning in the hubs when mounting the wheels. To stop them from doing so, we simply "tack" them to the hubs.  Previously I've just used ER7OS filler to complete this task. For a change I decided to use some ERCuSi and tig braze the bolts to hubs.  I'm very happy with the results and the brazed joint seems to withstand more shock and torque before failing (the weld pulls out of the cast hub).cheers !exampleready to go !Last edited by spiral-cut-bevel; 09-14-2008 at 11:26 PM.-Graham-Mechanical EngineerAutosport Mechanic/Fabricator
Reply:so you use the torch to heat the bolt and hub  to below the metling point , but  hot enough to melt the brazing rod..im guessing maybe 60 - 70  amps ??
ReplyTig brazing some Cast Stl to Med C Stlooks like a Tig WELD to me.
ReplyTig brazing some Cast Stl to Med C Stlon't know if this question belongs hereJust how in the H do ya tell the difference between cast steel, and cast iron.Now I know some things are iron just because of what they are, but on other things,  I'm not sure.I had a guy at the parts dealer tell me that a lot of front end parts are cast iron due to easy machining, and cost.  I wouldn't think a hub (as in this thread) would be, but then I'm not sure about any of the front end stuff.  Heard about hitting it with a grinder and lookin' at the color of the sparks.  I usually wear a #5 pair of cutting/safety glasses, and can't tell the color from squat."Any day above ground is a good day"http://www.farmersamm.com/
Reply:Grahamtheengineer - That's some proud brazing.I can't help but wonder about the mechanics of it, but you know the application.For the next one, maybe Dorman has a stock wheel stud?They list about a thousand numbers, including overlengths:https://www.dormanproducts.com/cgi-b...om_page=search Originally Posted by farmersammDon't know if this question belongs here...Just how... do ya tell the difference between cast steel, and cast iron?Heard about hitting it with a grinder and lookin' at the color of the sparks....
Reply:Originally Posted by weldbeadso you use the torch to heat the bolt and hub  to below the metling point , but  hot enough to melt the brazing rod..im guessing maybe 60 - 70  amps ??
Reply:Originally Posted by grahamtheengineerof course...but ,the process is not the same as a "traditional" tig weld (see statement above)
Reply:http://en.wikipedia.org/wiki/BrazingI guess it would be a braze-weld then.
Reply:did you heat to dull red, or test the brazing rod to see if it was melting...??
Reply:Originally Posted by tapwelderhttp://en.wikipedia.org/wiki/BrazingI guess it would be a braze-weld then.
Reply:guess you didn't read far enough.  By the way those cast iron header / engine brazing repairs rarely involve close fit up. [edit] Braze weldingIn another similar usage, brazing is the use of a bronze or brass filler rod coated with flux together with an oxyacetylene torch to join pieces of steel. The American Welding Society prefers to use the term braze welding for this process, as capillary attraction is not involved, unlike the prior silver brazing example. Braze welding takes place at the melting temperature of the filler (e.g., 870 °C to 980 °C or 1600 °F to 1800 °F for bronze alloys) which is often considerably lower than the melting point of the base material (e.g., 1600 °C (2900 °F) for mild steel). In Braze Welding or Fillet Brazing, a bead of filler material reinforces the joint. A braze-welded tee joint is shown here.Braze welding has many advantages over fusion welding. It allows you to join dissimilar metals, to minimize heat distortion, and to reduce extensive pre- heating. Another side effect of braze welding is the elimination of stored-up stresses that are often present in fusion welding. This is extremely important in the repair of large castings. The disadvantages are the loss of strength when subjected to high temperatures and the inability to withstand high stresses.The equipment needed for braze welding is basically identical to the equipment used in brazing. Since braze welding usually requires more heat than brazing, an oxyacetylene or oxy-mapp torch is recommended.‘Braze welding’ is also used to mean the joining of plated parts to another material. Carbide, cermet and ceramic tips are plated and then joined to steel to make tipped band saws. The plating acts as a braze alloy.Last edited by tapwelder; 09-17-2008 at 11:07 AM.
Reply:Originally Posted by tapwelderguess you didn't read far enough. [edit] Braze weldingIn another similar usage, brazing is the use of a bronze or brass filler rod coated with flux together with an oxyacetylene torch to join pieces of steel.
Reply:Originally Posted by Engloid.  I think it's just a term somebody came up with because they thought cast couldn't be TIG welded and had to be brazed.  I think they TIG welded it and called it TIG brazing.
Reply:i think the main thing to remember is melting the  parent metal is welding. heating it  enough so its surface causes the filler to melt and wick into the voids is brazing.
Reply:Originally Posted by EngloidAnd in this case, an OA torch wasn't used, was it?
Reply:In short, the pictures above are NOT brazing.  It is simply a TIG weld.  Had it been brazed, capillary action would have pulled the filler under the head of the bolt.  A weld means that the filler and base metals will have some area in which the two will mix...which you would find if you did a chemical analysis of this weld.  You would likely see it if you did a macro etch also.
Reply:So what is using brazing filler and flux with a torch to connect two pieces of metal where you don't melt either base metals and there is no capilary action such as in the way one may join two pieces of wrought iron using brass brazing rod?--Wintermute"No man's knowledge here can go beyond his experience." - John Lockewww.improvised-engineering.comManufacturer Agnostic:Blood----------Sweat---------Tears----|------------------|----------------|----Lincoln Red, Miller Blue, Esab Yellow
Reply:Originally Posted by wintermuteSo what is using brazing filler and flux with a torch to connect two pieces of metal where you don't melt either base metals and there is no capilary action such as in the way one may join two pieces of wrought iron using brass brazing rod?--Wintermute
Reply:Originally Posted by EngloidSince there's no capillary action, I'd call it brazing with poor fitup or poor execution.
Reply:Originally Posted by wintermuteBe that as it may, it is done all the time...filling gaps with brazing rod and other things.
Reply:Searching around, it seems the common term for it is "wide gap brazing" or "v gap brazing" depending on the application.  Some of the texts I found looking around online were pretty old...but they mention two types really.  The first type makes use of a supporting filler of a high melting temperature.  The supporting material can be in the form of balls, honeycomb, "foam" metal, etc... and the braze filler functions by capillary action filling in between the supporting material.  The other method I found was where a brazing filler of a "wide melting range" is used which can be layered on the base metal and itself in order to build up and fill a gap.  There is alot of data out there regarding the MPa of the different filler types that can be used for either method as well as information about the strength provided by different supporting materials as described in the first of the two methods.  Seems like it would heavily depend on your filler material for either method.--Wintermute"No man's knowledge here can go beyond his experience." - John Lockewww.improvised-engineering.comManufacturer Agnostic:Blood----------Sweat---------Tears----|------------------|----------------|----Lincoln Red, Miller Blue, Esab Yellow
Reply:slightly off this subject but still related, this raised a question about a current project. I have about 100 small cast iron parts I have to weld to cast steel, small "intricate" (spelling?) parts no real stress on them but they need be secure,they will be painted after. I was going to tig these with Ni rod. What do you think, its alot of parts that have to look real pretty, and accept paint- which braze doesnt like to do.Plus I dont want to spend 2days on these parts.  Any thoughts on this ?Dan.Repair Specialties LLC

Spot Welder for Tig brazing some Cast Stl to Med C Stl,Spot Welding Machine for Tig brazing some Cast Stl to Med C Stl, Laser Welder for Tig brazing some Cast Stl to Med C Stl, Laser Welding Machine for Tig brazing some Cast Stl to Med C Stl,Spot Welder manufacturer in China, Tig brazing some Cast Stl to Med C Stl Laser Welder manufacturer from China
go to see Welding Machine for Tig brazing some Cast Stl to Med C Stl

Products