Surekha Krishnan
Metallurgy Expert
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Co-authored Articles (15)
How to
Set Up an Oxy Acetylene Torch
An oxy acetylene torch is an affordable and versatile tool used by many people to heat, weld, solder, and cut metal. It uses extreme heat to function, and setting it up properly is one of the most important steps in usin...
How to
Purchase Liquid Nitrogen
People use liquid nitrogen (LN2) for a variety of purposes, including freezing warts, performing science experiments, welding metals, preserving biochemical materials, and even home cooking. Yet since it’s potentially ...
How to
Melt Aluminum Cans
Melting aluminum cans yields pure aluminum that you can use for other projects. Once you have pure aluminum, you can mold it into fun or useful shapes. Aluminum has a low melting point, so you can easily melt it using a ...
How to Antique Stainless Steel
Personalize stainless steel by adding an antique patinaStainless steel is a general term referring to any steel alloy containing chromium. The chromium prevents rusting, weathering, and antiquing (ergo, “stainless” s...
How to
Make Torches
Torches can be used to light your way, to provide light and ambiance on outdoor patios, or even while camping to help keep your campfire lit. However, if you're going to light your torches, you must be very careful, and ...
How to
Clean Zinc
Items made with zinc can range from jewelry to tabletops and tubs. There are multiple ways to clean these objects effectively without having to buy harsh chemicals. The most common and environmentally friendly methods to...
How to
Age Aluminum
If you have a piece of aluminum you’d like to age, there are several methods of doing so. You can spray your aluminum with bleach and set it in the sun to create an aged look. Alternatively, you can wrap your aluminum ...
How to
Bend Aluminum Pipe
Aluminum pipe is much easier to bend than aluminum tubing, due to the greater wall thickness, since it is less likely to collapse or deform when you bend it. The thicker material will also require more muscle or the use ...
How to
Use a Blowtorch
Blowtorches can seem intimidating, but they are very handy tools if you know how to use them correctly. From cooking to soldering pipes, you can use a blowtorch in many household and DIY projects. The most important thin...
How to
Melt Silver Coins
Silver was a popular metal used in coins for centuries, until its price reached the point that the metal in the coins exceeded the face value of the dimes, quarters, and half dollars that used it. While its price is sign...
How to
Make a Grappling Hook
A grappling hook is a device that allows you climb an object such as a building, wall or a fence. Making a grappling hook is usually safe, but using it won't be. Wear a helmet, and make sure that if you do fall, you fall...
How to
Build a Propane Blacksmith Forge
In the workplace, metal is only as good as its temper. A forge allows the craftsman to change properties of metal such as its hardness, shape, and strength as a project dictates. There are several ways to accomplish this...
How to
Solder Wire Sculptures
This method is not meant for electronics, plumbing, or other repairs, but is a useful technique to making mobiles, cubes, and other shapes of wire.
How to
Become a Millwright
Millwrights are skilled laborers who work with machinery and other industrial equipment. To become a millwright, you'll need to complete both on-the-job training and formal classroom instruction.
How to
Become an Underwater Welder
Choosing a career as an underwater welder can provide you with an opportunity to apply sought-after skills in a unique and exciting environment. If you're interested in becoming an underwater welder, you'll first need to...