Well, I patched my driver side door today and it went a whole lot better than I expected. It also took a lot longer than I thought it would. Used my mig welder to butt weld the new piece in and then over and over until the holes were filled. The issue I had was grinding down the welds. Man was that tough, and noisy. I used a 4" grinder and it ...

1.2.2 Limitation on imperfections in socket, fillet and seal welds are the same as in Paragraph 1.1.4 and 1.19 for cracks, lack of fusion, and undercut. 1.2.3 Socket and fillet welds may vary from convex to concave. The size of a fillet weld is determined as shown in page 5. Typical minimum fillet weld details for slip-on

Unlike grinding, this cleaning method will successfully remove all dirt and discoloration from the welds. This is especially important for the successful restoration of the passive layer. Cougartron weld cleaning machines are designed to initiate and induce the formation of chromium oxide film on stainless steel surfaces and welds.

Better surface finish than a grinding wheel or fiber disc, grit for grit. Overhead work where the weight of the grinder is important. Removing weld splatter without overgrinding – 50 grit or finer. Non-woven abrasive discs. Small welds ¼-in. wide by ¼-in. high where overgrinding is a concern, such as thin-walled sheet metal. Cleaning up ...

08-16-2009, 09:11 PM. If you're going to grind them out and re-weld, grind them COMPLETELY OUT (meaning grind a V and get back to base metal) and re-weld. One of the guys who is a metalurgist here will have to answer your question about how many times you can weld/grind/weld/grind on the same area without detrimentally affecting the strength ...

If you're doing fabrication, you need four types of wheels for your angle grinder. They are the standard grinding wheel, the flap disc, the cutoff wheel, and the wire wheel. If you scroll to the bottom of the article, you can see what each …

Grinding off a large amount of material makes the area hot and then wavy. You should be able to get your welds to the point where they only need a quick blast with 80 or 120 grit on a flap disc to flatten. Then finish with a rubber backed 180 grit. Dont use a …

A torch can be used. But the cutting should be away from the weld surface to remove the beam and connection material. Then the remaining material can be removed with a grinder/cutting wheel. In most cases, cutting the welds with a torch will damage the welding surface. This can be repaired, within reason. Air arc gouging can remove the welds ...

After re-reading your post, if the vessel is indeed completed ASME code ends when vessel fabrication is completed, hydrostatically tested and stamped. This is no different than if welding were to be performed on a completed vessel, in this case the NBIC would be invoked not ASME Code. RE: Grinding after hydro. SnTMan (Mechanical) 3 Dec 13 18:00.

Spacer – This symbol indicates the type and the dimension of the spacer that is inserted between the welded pieces. Weld all around – It signals that the weld is to be made over the entire circumference. Flag symbol – Field weld/Made on site. Contour – These symbols designate the final weld end product contour.

Used my mig welder to butt weld the new piece in and then over and over until the holes were filled. The issue I had was grinding down the welds. Man was that tough, and noisy. I used a 4" grinder and it worked ok. I had the best success with those little 2" sanding pads on the end of my angle grinder. I also tried one of those flapper discs on ...

Contact him at (763) 585-6411 or [email protected] We've all looked at a car and thought wow, I would have done it this way or that way. I …

A corner-flange weld must be used when one piece is a rectangle (i.e. no edges that flange) and one with a flanged edge. Here, you would connect the straight side of the flange piece to the flat metal so the tops are aligned. Then, you'll weld the corners to secure the two sheets. 3. …

1.2 Socket and Fillet Welds 1.2.1 As-welded surfaces are permitted; however, the surface of welds shall be sufficiently free from coarse ripples, grooves, overlaps, abrupt ridges, undercut, and valleys. 1.2.2 The surface condition of the finished welds shall be suitable for the proper interpretation of nondestructive examinations.

Grinding discs would most likely be used for such tasks. [7] Cleaning up and Finishing Welds. SMAW can be a messy process that leaves a lot of slag leftover, but an angle grinder is an effective way of removing it. The angle grinder also grinds down weld beads when performing root and fill passes in pipe welding. [8]

Welds (see 2.4.5) fillet welds shall terminate not less than the size of the weld from the start of the extension (see Commentary). 2.4.7.3 Maximum End Return Length. Flexible connections rely on the flexibility of the outstanding legs. If the outstanding legs are attached with end returned welds, the length of the end return shall not exceed four

For reference, I'm talking about stitch welds on sheet metal. The typical combinations I've seen suggested are: 1) angle grinder/flap disc. 2) mini die grinder/2" sanding disc. Abrasive grade recommendations I've seen are 36-grit …

Soaking the weld joint in a bath of nitric or hydrofluoric acid will remove the heat tint with ease. Shops that do lots of stainless work have large tubs of acid for soaking off heat tint. Make sure you wear adequate protective equipment and neutralize …

A Norton Blaze Rapid Strip disc and competitors' discs were used to remove a TIG weld on flanged isolation dampeners at MC Air Filtration LTD. Norton Disc: Blaze Rapid Strip 115x22mm. Tool: Angle Grinder. Situation: Large TIG …

Tack welding is a process in which you set your welding material in place by applying short welds or tack welds that act as fixtures or joints. These welds are placed along the metals being soldered together before making the initial and …

1. The Base Platform. This symbol is a simple platform for displaying the characteristics and surrounding details for your welds. It has three parts: The arrow line: points to the general location of the weld. The reference line: this is where the details are placed about the type of weld and the specific location.

If the pattern is only 0.25 in. wide, your angle of approach is too high. 6. Keep consistent pressure throughout. When it comes to technique, grinding down a weld is pretty straightforward: Move the disc (again, angled 5 to 10 degrees …

ated with lack of a suitable welding purge go away, i.e. severe weld discoloration or sugared welds. Cutting, grinding and mechanical polishing also alters the stainless steel surface and can affect the passive surface. It is very important to use tools dedicated for use with stainless steel when performing these opera-tions.

Now it has gotten to the point that mig welding new panels on a new vehicle that was in a collision are pretty much over.The OEM's want you to use a resistance spot welder used simultaneously with panel bond.Some panels are uber high strength steels need to have the seams welded with mig brazing to maintain their high strength.The last 5 years ...

Beginner Welding Mistake #3: Using improper safety precautions when welding, cutting, and grinding resulting in fatal damage to your body. When you begin welding you're going to be working with a lot of new equipment that you may or …

5. The throat of the weld is the distance between the welds face to the root of the weld. This is basically measuring how deep the weld is. The throat should usually be as thick as the metal pieces you are welding together. If you're …

Burning paint generates toxic fumes. It's simply too easy to remove the paint before welding to avoid this step. A wire wheel on an angle grinder is a great tool for removing paint. The wire wheel will also remove just about any other potential contaminate lurking on your base metals. A flap wheel on an angle grinder is also a great choice ...

These are determined by the joint geometry. The following 8 steps will make it easier to interpret welding symbols for groove welds. 1. Determine the type of joint and joint preparation needed. The American Welding Society, in its publication …

Worker doing a vertical position weld. You want to start at the top of the joint when vertical down welding and head down the weld. To prevent burn through, keep the wire directed away from the weld puddle and on the leading edge. If you need to flatten the weld crown, give it a very slight weave.

The approach taken in this web page is a relatively fundamental approach that should be easily modified for use in most instances. The steps taken to calculating welding costs and times are as follows: Calculate the volume of weld metal to …

The first step would be to remove a layer from the weld bead to make it semi-flush with the base metal. The details of the processes might differ depending on the metal, type of weld, and location but broadly the process is the same. You can use a …

It accommodates belts from 3⁄32 to 3⁄4 in. wide, and the handle rotates 180 degrees. Dynabrade's Dynafile ® and Dynabelter ® pneumatic tools, available in a multitude of variations, develop 5,000 to 25,000 RPM and use belts from 18 to 24 in. long, ¼ to 1 in. wide. The grinding head rotates up to 180 or 360 degrees, depending on the model.

Fatfrank, Bit of a jumbled sentence there, but still clear enough to make out. 1. Weld up an example of a joint you wish to test this theory out on. 2. Once you have this example, cut it in half to give you two equal examples. 3. Leave one as welded and grind the other in order to give you an example of both.