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More from Nino Mascalco
- From The Welder
Consumables Corner: Addressing cracking on free-machining steels
- By Nino Mascalco
- Jun 17, 2014
- Consumables
- Article
Q: We are a small company that fabricates and welds various parts and products for numerous companies. One of our customers is supplying us with parts for a particular weldment. All of the individual parts are made from A36 steel except for one, which is made from 12L14 steel. We are using GMAW...
- From The Welder
Consumables Corner: Identifying pockmarking causes in structural SAW
- By Nino Mascalco
- Jun 16, 2014
- Consumables
- Article
Q: Our company manufactures various structural components, typically made from A36 or A572 steel grades in plate, I-beam, or channel. Based on the application we’ll use GMAW, FCAW, or SAW. On random occasions we experience pockmarking on the surface of the SAW joints. While the timing is usually...
- From The Welder
Consumables Corner: The thought process behind changing a weld process
- By Nino Mascalco
- Jun 13, 2014
- Consumables
- Article
Q: Our company is using 0.045-in.-dia. mild steel solid wire for GMAW with 90 percent argon/10 percent CO2 shielding gas. A majority of our base metal is ¼ to 1 in. thick welded out of position about 30 percent of the time. We are considering a change in our welding process to reduce lead-times....
- From The Welder
Consumables Corner: Tackling root penetration problems
- By Nino Mascalco
- Jun 12, 2014
- Consumables
- Article
Q: We are experiencing weld root penetration issues in our single- and multipass welds. Our base metal is A36, and we oxyfuel-cut it in thicknesses from ½ to 3 in. Most of the weld joints are standard T-joints with a few groove joints. We are using a 0.045-in.- dia. E71T-1C/M flux-cored wire with...
- From The Welder
Consumables Corner: Examining the root cause of distortion
- By Nino Mascalco, Rob Koltz, and Steve Sigler
- Jun 11, 2014
- Consumables
- Article
Q: We manufacture hydraulic cylinders. Ever since we changed our shielding gas blend, we’ve noticed a higher level of distortion. Before the change we used a 95/5 blend, but now we use 92/8, which we have documented using a 0.045-in.-dia. filler metal. Would the 92/8 blend run hotter and cause...
- From The Welder
Consumables Corner: The reasons for and misconceptions about preheating steel
- By Nino Mascalco
- Jun 10, 2014
- Consumables
- Article
Q: We are expanding our job shop and adding the capability to work with much heavier structures, including considerably thicker materials. Some of these jobs specify high-strength materials and preheating. Some of our welders claim preheating is performed to remove water from the steel. Can you...
- From The Welder
Consumables Corner: Defining current density
- By Nino Mascalco, Rob Koltz, and Steve Sigler
- Jun 5, 2014
- Consumables
- Article
Q: Our company manufactures cylindrical structures, including tanks and smokestacks made from A36 or A572 material. The material is burned to size on a plasma table and mechanically beveled. Process limitations cause gaps in the joints during fit-up. We use a 0.045-in.-dia. solid wire with a 75...
- Podcasting
- Podcast:
- The Fabricator Podcast
- Published:
- 05/14/2024
- Running Time:
- 62:12
Cameron Adams of Laser Precision, a contract metal fabricator in the Chicago area, joins the podcast to talk...
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- May 16, 2024
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Managing Dangerous Dusts from Metalworking
- June 26, 2024
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