Metal Spinning Aluminum for Light Fixtures

The light fixtures in your home, serve more than just a practical function. They add to the aesthetic beauty and character of the home. A metal light fixture is more than just a shield to direct the focus of a light; it can be a work of art. This is particularly true when the fixture is produced via the process of aluminum spinning. Lighting fixtures such as wall sconces, pendants, and recessed lighting fixtures can all be produced by a metal spinning artesian, and when the spinning is done by hand, it elevates the manufacturing process to an art form.

What Is Metal Spinning?

Metal spinning is the process of changing the shape of a metal by spinning it on a lathe. However, it is different from more conventional methods of metal turning or wood turning in that the shaping process does not involve removing material. Rather, it is a process more analogous to shaping clay on a potter’s wheel. In aluminum spinning, the raw the metal, usually configured as a tube or disc, is placed on the lathe and shaped around a mold. This results in a new, rounded, symmetrical shape.

Why Is Aluminum Used?

Aluminum offers many advantages both for the metal spinner and the purchaser of the fixture. For the spinner, aluminum is a lightweight and malleable material that is one of the easiest metals to work with. For the purchaser, aluminum light fixtures are cost effective and durable due to aluminum’s resistance to corrosion. For both the spinner and the purchaser, the different alloys of aluminum offer different options to make each piece unique and distinctive. Aluminum spinning offers advantages over stainless steel or copper, both of which are more difficult for the spinner to work with and more expensive for the purchaser to buy. Certain aluminum alloys can mimic some of the properties of stainless steel for a much better price.

What Are the Different Metal Spinning Techniques?

In the past, metal spinning was only done manually. Nowadays it can also be performed via computer-assisted automation. A computer numerical controlled (CNC) lathe efficiently produces a more uniform thickness and is good for producing a larger quantity of components.The skill and craftsmanship is still required when using CNC controlled lathes although the automation does make things easier for the more novice metal spinner to do some of the projects asked of a custom metal spinning company. Each light fixture produced via aluminum spinning by hand is a unique masterpiece.

In a world where the warmth and homey comfort of incandescent lights are being replaced with more energy-efficient led lights, homeowners are looking for charming and unique lighting fixtures to keep each house feeling like a home. Metal spinning for light fixtures meets that need, and a custom metal spinning company is the best place to turn for unique aluminum spinning solutions.

The Essentials of Designing and Manufacturing Pressure Vessels

Pressure vessels are designed to contain a volume of fluids or gas in a relatively small space under extreme pressures. They are used in applications ranging from oil extraction to nuclear reactors. No matter how sophisticated the use needs to be, making pressure vessels involves some metal spinning and rolling to get the vessel to have symmetrical cap ends. In fact, the essentials of designing and manufacturing pressure vessels are remarkably similar for any application. Let’s take a look at this video,

Balancing Strength and Practicality

Compressed fluids exert a large amount of strain on their containers. The constant challenge of manufacturing pressure containers is how to balance the strength of the materials with practical constraints such as expansion and weight of fluids under pressure.

Designing strong vessels is addressed in two ways: using strong materials and making the container in a way that the strain is minimized. For the first consideration, steel is the most common solution. It is strong and relatively abundant, making it ideal for manufacturing pressure vessels.

To minimize the strain exerted on the vessel, the solution is conceptually simple when using a round sphere. However, this is often not as simple to engineer. While high-end, specialized pressure vessels can be meticulously manufactured to be perfectly spherical, the majority of applications call for a more tank like solution.

Cylindrical vessels with spherical, “dished,” heads at either end is the most popular way of overcoming this challenge. This design is robust while still being economical to manufacture.

Manufacturing Dished Heads

Making the heads for pressure vessels requires two major steps: creating a mold or metal spinning mandrel and the next step is molding the flat piece of sheet metal around the mold using the process of sheet metal spinning. The first part of this requires the mechanical design to be help the metal spinning manufacturer to create the mold. Most spinning companies start with a block of maple wood for the mold making. The design is programmed into a CNC spinning lathe and machined to the inside dimensions of the metal head.

Following this, the steel can be shaped using a metal spinning machine and an experienced craftsman. The flat sheet metal material is locked into the lathe and the operator get’s the speed up to 750 – 900 rpm’s. At these speeds, the spinning tools are applied at specific angles and force to elongate the sheet metal around the mold’s shape. Once the head ends are shaped, a welder can cut holes for the pressure vessel fluid flow pipes and these are added according to spec and the cap ends can now be added to the pressure vessel body.

When roll forming metal for vessels, the steel material needs to be precut to size prior to entering the roll forming machine. The cap ends that were manufacturers using sheet metal spinning will require good strong welds to prevent any leakage of fluid that will be under pressure. The welding of fixtures and valves to the pressure vessel requires a skilled hand. These weld points will be under the most stress.

The Benefits of Metal Spinning for Equipment Manufacturing

Equipment manufacturing often requires metal components with exact specifications, tight tolerances and often expensive materials. If you need copper or brass parts that are symmetrical in shape, metal spinning can be a cost effective option. Metal spinning is a technique for forming complex, symmetrical, 3-dimensional shapes from sheet metal disks. The spinning disk is shaped either manually or by a CNC lathe, which allows for easy customization. Metal spinning is a perfect solution for producing components in a wide range of industries such as:

  • Electrical
  • Cookware
  • Architectural
  • Lighting
  • Manufacturing equipment

Metal spinning has a number of benefits compared to other fabrication techniques. Not only is it ideal for custom, complex forms, spun components are seamless, stronger and often less expensive to produce.

1. Perfect for Complex Forms

Because components are formed by stretching metal on a high speed lathe using CNC control systems, they can be shaped to your exact specifications and can assume nearly any form that is axially symmetrical. Pressure vessels for example require good conductive metals to be shaped into spheres with depth and without seams. Therefore, copper spinning is the manufacturing process recommended for pressure vessels. Heating techniques are used to neck down or close off forms when cold techniques aren’t possible. If you’re working on a prototype and need to make minor alterations, this can be done quickly and easily.

2. Stronger Parts

The spinning process actually realigns the grain of the metal, which improves the tensile strength. That means you can use a lighter gauge material to do the same job as a heavier component fabricated by a different method. Each component is created from a single disc of metal so that there are no seams in the final product. The lack of seams makes a component made by spinning capable of withstanding greater pressure from inside or outside. This is why fire extinguishers, oxyacetylene tanks and other pressurized canisters are usually made using the metal spinning technique.

3. Less Expensive

Metal spinning is one of the most affordable techniques for producing custom metal components. This is primarily due to low-cost tooling and lack of waste material during the spinning process. Because of the flexibility of CNC technology, design changes can usually be implemented without additional costs to the client. Most custom metal forming manufacturers embrace sheet metal spinning as a viable alternative to metal stamping with dies and power presses when clients are looking for circular shapes.

If you need decorative reflective metals for your metal parts, copper spinning, brass spinning or another process called hydroforming sheet metal may be the perfect solution. Consult with a custom metal spinning company in Pennsylvania to find out if metal spinning is the right technique for your next metal part.

Spun Sheet Metal for Beauty and Functionality

What do clay and metal have in common? Both can be spun to make useful and decorative items. While clay can be spun in the comfort of a studio, sheet metal spinning is an advanced technique offered by various metalworkers and manufacturers. There are many kinds of metal that can be spun and the process is very flexible. A metal spinning service is useful for retail products, industries that require vessels and ornamental architecture. Here are some great spun metal products.

Musical Instruments

A symmetrical shape often creates a beautiful musical tone, as with gongs, cymbals and these handbells. These metal instruments require seamless designs to produce a high quality sound with no vibrations out of place. Brass and copper bells are also finished to have a polished shine to go along with their melodic sound. If you need multiple bells of different sizes and shapes, it is simple task to change the tool shape and angle to suit this need. A craftsman can design multiple bells that have the same style and often works closely with a metal spinning service on the intricacies of the design and metal quality.

Kitchen Appliances

When you look around your kitchen, there are many symmetric pieces hanging from the pot rack, being used as utensils to ladle soup, cut pizza and sauté vegetables. A stove top drip pan, for example, is a round disc that is molded to fit the range slot with a hole drilled in later for the heating element to pass through. Many other food preparation items are made to spec via the services of a custom metal spinning company. Other appliances, such as blenders, microwaves and refrigerators, also use small, symmetric parts that you’ll only know are there if you’re involved in manufacturing or repairing of such items.

Decorative Metals

Metal is a common decorative material in rustic and modern lighting units. A metal bowl can be spun from a bronze sheet of metal that would look great on your dining table with some flowers, or fruit. Recessed lighting fixtures, hanging pendant lights and symmetrical wall sconces often use the metal spinning process to produce their shapes. For artists, a spun metal plate makes for a unique canvas to paint or etch. Small metal discs are great for windchimes and it is not unusual for iron alloys to be spun for railings and room dividers.

Sheet metal spinning starts off with a metal blank cut to a round shape that is flat and then contoured on a spinning press moving at high rpms. A custom metal spinning company often starts with a CAD drawing provided by the client and they work together to select metal types and grades appropriate for the task. This gallery shows some examples of items created by a metal spinning service and the machines involved in the job.

How Are High Pressure Vessels for Compressed Gas Made?

If you are a buyer of pressurized gas for your business, you may be curious about how a commercial metal forming company produces high pressure vessels suitable for containing compressed gas. There are several steps involved in making pressure vessels that can withstand up to 1000 times more pressure than other more basic containers that may be used for storing dry goods under normal pressure.

Heat Treated Metal and Chemical Baths

Metals such as the steel alloy chromoly are often used for high-pressure vessels. These metals are initially treated at a temperature near 1300 degrees Fahrenheit for 36 hours before being immersed in the first of a series of chemical baths intended to allow the metal to flex and be capable of safely storing compressed gas. Once dried, the metal is moved over a hydroforming press to be formed into the shape outlined by the designer. Often there is a deep draw die that is made based upon the specifications provided by the client.

A Series of Presses

Several different types of powerful presses are used to shape compressed gas vessels. A mandrel pressor hydroforming sheet metal press applies up to 800 tons of force before another type of press may be used to continue refining the vessel shape with up to 150 tons of force while using a coolant to prevent overheating. Several presses may be employed to stretch the metal until the closed bottom end of the vessel is shaped and reinforced.

Finishing the Top and Exterior

In order for a commercial metal forming company to complete a pressure vessel, it is necessary to create a leak-proof neck and valve connection. First, a band saw is used to slice off the top of the container following pressing. A torch then heats the edge to more than 1500 degrees Fahrenheit for 90 minutes before the vessel is returned to yet another chemical bath for several minutes. The vessel is finally reheated to a slightly lower temperature around 1200 degrees Fahrenheit for 90 minutes before being left to cool for several hours. The surface is smoothed by shot blasting and the finished container is tested by being filled with and submerged in water.

All of the transitions between extreme heat and cooling involved in the production of a high-pressure vessel temper the metal and allow it to flex enough to safely contain pressurized gases. There are several major types of pressured vessels that that can be created by shaping deep drawn aluminum, specialty alloys and carbon steel. There are only a handful of hydroforming companies in USA that specialize in making pressure vessels for the compressed gas market.

Everything You Need To Know About Hydroforming

As a purchasing agent, you need understand what you can about many different types of manufacturing processes so you can make the right decision for the parts that you are going to have produced. If you are looking for a symmetrically round metal part to be made, then it helps to learn about what hydroforming is and what can be done with this type of process. There are only a few hydroforming companies in the USA because the equipment being used is highly specialized.

What Is Hydroforming?

Hydroforming is a technology for forming and creating metal parts. It allows for precision shaping of metal parts that are drawn to a depth more than 5 inches deeper than the previous formation. Most deep draw metal stamping machines do not have the capability to go deeper than 4 inches. In this hydroforming process, a pressurized fluid is used to form the metal pieces around a mold or die. The metal materials being formed often start out as a flat sheet or occasionally a tube.

Hydroforming sheet metal starts off as an approximately cut flat sheet of metal that is pushed around a die form with the pressurized water or oil to form the shape. Hydroforming is most often used when the production runs fall below 2500 pieces and not often used in longer runs. Some of the products that lend themselves best to hydroforming sheet metal are seamless vats, vessels, tanks, cooking pans and other types of metal containers. Many of the metal forming manufacturers that include deep draw metal forming in their offerings also include seam welding services, so they can bring two haves of a vessel together.Many times, hydroforming sheet metal creates seamless parts that get attached to other metal components with the aid of gaskets and fasteners.

The Process

The actual process of hydroforming starts with tooling that is made according to a CAD diagram. The tool goes into a tray with the metal placed over the form. Everything is moved into the chamber for forming. The machine fills with the water or a specially oil and begins the process of lifting, stretching and shaping the metal using a tremendous amount of force. The fluid is then extracted back into its reservoir and the chamber opens with the completed part.

Using Hydroforming

Hydroforming can be used in many applications with various types of metal. It is great for parts that have 90-degree bends or dramatic shaping requirements. It is ideal if the part needs to be lightweight, and it also costs less than typical deep draw stamping processes, which is perfect if you are looking for lower part costs on shorter production runs.

Materials can be anything from titanium, stainless steel, various carbon steel grades, aluminum to and even copper.

Stainless Steel Vessels Found in a Brewery

The brewhouse is the heart of a brewery. Each stage of the beer-making process determines the final quality of the brew. Finding the perfect machinery and vessels can be difficult, but when you work with a manufacturing process designer, you have more options and design capabilities for each step of the brew process. You need an individual approach to making your brewhouse more efficient to make your beer stand out in today’s market.

Perfectionists in Making Vessels

In a complete brewing system, you’ll have many different vessels, from mills to mash mixers, fermentation vessels and filling equipment. These commercial vessels are often customized to each brewer’s requirements. The chemistry that needs to be conducted with precision in the tanks depends on the right vessel, not only for operations, but also for installation and cleaning.

Although many budget-conscious brewers try to convert different tanks for fermentation and other stages of the process, in today’s market, it’s better to use the technology leveraged by commercial brewers who have been through a few brewhouse facilities. The cylindrical vessels that have been proven in the beer industry feature open-air stainless steel tanks, and have been the traditional method of commercial brewing for many years. Cylindroconical vessels have many benefits:

  • Ease of temperature control
  • Ease of cleaning
  • Hygienic recovery of yeast from the base of the cone
  • Lower operating costs
  • Lower capital costs
  • Faster fermentation rates

These cylindroconical vessels can be created through stainless steel spinning and should be customized to your brewing process. In addition, many fermenting technologies can be engineered into these vessels, including pressure relief valves and manway doors, which allow for cleaning and inspection of the tank’s interior.

Modern beer-making vessels are almost always constructed of chrome-nickel stainless steel. The surface of the steel has to be as smooth as possible. Crevices in the steel might allow for microbial contamination. In metal spinning for vessels, every aspect of the design process is accounted for to give the brewmeister the best brewing results.

Great beer is created by looking at the small details of brewing. Each connection and interaction in the process has to be carefully evaluated for flavor, body, composition and yield. Choosing the best metal spinning manufacturers in Pennsylvania and your brew process designer is a good step in the right direction for designing the brewhouse that will win medals for your brewmeister.

Make an Investment in Production Facilities

Beer making involves many steps before your customer gets a bottle of beer. When your brewhouse is carefully constructed with engineering best practices and brew technology, you’re more prepped to get the best overall results. Your facility designer should have a good understanding of custom metal forming for the beer making industry. Stainless steel vessels and deep draw metal forming for the mixing equipment makes is a big deal in the production process.