Uncategorized

welder Industrial automotive part in factory

07 Sep Types of Fabrication Techniques

There are many types of fabrication techniques where the most common ones are cutting and machining, punching and drilling, straightening, bending and rolling, fitting and reaming, fastening, finishing etc. A few types of fabrication techniques are listed below in detail:

 Cutting– For cutting there are numerous ways and it is done with the saw, plasma torches, water jets, and lasers.

o  Machining– The process of machining involves removal of the piece of metal from a piece of material. It is performed either on lathe, where the material will rotate against a cutting tool, or in some other kind of cutting machine.

o  Folding – Some parts require bending and with the help of a press brake which has a set of dies to pinch the metal, it is useful for forming a crease. This is performed in specific cases only.

o  Shearing– To make a long cut on the piece of metal is known as shearing and it is performed on a sheet metal.

o  Welding– To join two pieces of metal, welding is done. Various kinds of welding is performed on range of metals used for diverse applications.

 

In the fabrication process many types of fabrication materials are used. As fabrication process is quite complex the composition of materials which are being used need to have some desired proprieties. Features of these fabrication materials are stated below:

o  Casting raw material – Casting is a fabrication process which is 6000 years old and, in this method, a liquid metal is forced into a mould which is then allowed to cool so it can harden in the required shape. For applications that need complex geometries it is an ideal method. Common metals used for casting are steel, magnesium, gold, silver, iron, copper, etc.

o  Flat metal raw materials – flat metal Is a type of metal that has been rolled or pressed in thin or flat pieces. Thickness of a metal sheet varies greatly and is measured in gauges. Three general categories of flat metal raw materials are foil or leaf metal which is the thinnest type of flat metal, second one is sheet metal and the thickness of this metal is less than 6mm and the third one is plate metal is thicker than 0.25 inches.

o  Formed and expanded metal – the name expanded metal is derived from the process which is used for creating it. To create holes in diamond shape that are surrounded by interlinked metal strands a stock metal sheeting is first sheared in the press and then the shearing expands the metal to its final size. Expanded metal raw materials come in various grating sizes and standard thicknesses.

o  Hardware raw materials– Hardware is defined as the many standardized parts or fittings which are useful to make a product strong, easier to fabricate and more functional. It includes basic raw materials like handles, locks, latches, chains, etc.

Read More
Steel Frame Fabrication Dorset

23 Aug Basics of Steel Fabrication

Fabrication is “the action or process of inventing or manufacturing something”, as explain in the oxford dictionary.

Steel Framed Building | Dorset

Steel fabrication is a sensitive task because it needs skilled individuals who can handle the process well and work with care. It covers designing, detailing, drawing and constructing many steel structural members like deck, handrails, stairs and a lot more. Steel is used for constructing bridges, residential building, etc. Structural steel is useful for building complex and simple structures in a cost effective and time saving manner. A systematic well-designed steel fabrication process offers many benefits.

 

A good steel structural fabricator follows a specific process and the metal has to pass through many operations. A basic overview of the fabrication process steps are explained below:

  • Firstly, structural sections may have to go through surface cleaning procedures so different cleaning methods need to be applied, such as, blast cleaning, flame cleaning, manual cleaning, etc.
  • Once the surface is prepared cutting to the length is important and it can be done by implementing the most suitable process like, shearing or cropping, flame cutting or burning, cold sawing, punching or drilling and arc plasma cutting.
  • After the above process, the steel may become distorted because of handling or transportation process. Thus, it needs to be bended, rolled or straightened.
  • Now fitting and reaming will come into the picture. Minor defects will be corrected here.
  • Now the use of fastening methods has to be proper as the strength of complete structure depends on it. The three fastening methods are riveting, bolting and welding. Now-a-days welding is the most common method, but sometimes the need of bolting and riveting may arise.
  • Then comes finishing. Finishing will be done by sawing, milling or any other suitable means. For satisfactory finished cuts, a saw machine is used and for smoothening the steel surface other methods are used accordingly.

Lastly, the surface treatment is done with metal or paint coatings.

Read More
Green Copper

13 Jul What Is Green Copper?

As a result of oxidation, the natural weather process that occurs when air and acidic moisture react with the copper surface. Since copper’s patina is a result of environmental exposure to carbonates, sulphates and sometimes chloride salts, the oxidation process can be quicker in areas with higher exposure to sea salts and pollutants, such as seaside or industrial areas.

Green CopperCopper’s characteristic greenish-blue patina is actually a protective surface coating that presents further corrosion (similar to aluminium corrosion). The visually appealing green patina can be recreated artificially on copper through a chemical process.

At 130 years old, Lady Liberty is still one of the most iconic and easily recognizable women in history. She represents hope, democracy and peace. Standing 151 feet tall atop a 154-foot pedestal, she gives new meaning to the term ‘statuesque’ and has a lovely green pallor.

But the Statue of Liberty wasn’t always green copper. When she was originally assembled in 1885, all 350 pieces were the typical brown colour native to copper. Over the course of the next 30 years the copper brown colour slowly changed, first to a darker brown, then to near black, and finally to the green copper colour we see today.

Copper surfaces can be maintained to avoid further oxidation by periodic oiling with a high-grade paraffin oil. The oil should be rubbed in with a clean, soft cotton cloth and repeated regularly to maintain the natural copper finish.

Copper and bronze have been used in architecture and sculpture for thousands of years. Durable and strong, copper is used today in both architectural and industrial metal fabrication applications. Sheet copper can be used as a lighter-weight alternative to slate or tile roofing materials, and can be shaped to cover domes, chimneys and other architectural features that require a watertight folded seam. Copper alloys used in architectural metal projects include bronze (an alloy of tin and copper), and brass (a copper/zinc alloy).

Read More
Steel Framed Building | Dorset

29 Jun Why Cheapest Isn’t Always Best

Here atSteel Framed Building | Dorset, we pride ourselves on unbeatable prices with the highest quality and great customer care. We provide thorough research before supplying a quote to guarantee we provide quality materials and services at the best prices.

We all want the best value for money, but when it comes to metal fabrication, especially large-scale construction projects, the lowest bid doesn’t necessarily always provide the best value.

The lowest bid is often a result of a bidder’s mistake – scope items may have been missed, complexities may be underestimated or, worse case, craftsmanship may be undervalued. Any or all of these issues can lead estimators down a slippery slope.

Ultimately – and particularly when quality is at stake – the lowest bid almost always leads to other hidden costs that present themselves when it is too late to change.

Price quotes can vary for a multitude of reasons, and so can a company’s experience. When it comes to metal fabrication, and especially large-scale projects, you want the most qualified company for the job. A lesser-experienced company will often present a lower bid, and that inexperience is often reflected in lower-quality materials, shoddy workmanship, safety oversights and ultimately in the final project.

When it comes to choosing the one metal fabrication company that best suits your needs, there are five main factors to consider:

  • Capabilities
  • Experience
  • Quality
  • Methodology
  • Customer Service
Read More
Welding in hollow section

15 Jun Welding Skills

Contact our fabrication experts today on 01202 882211 or email us at info@rowtecdorsetltd.co.uk to find out about the best steel fabrication Dorset has to offer.

Welding skills are classed as an art, it takes a lot of experience to get the right technique down. It is important to know what welders do and how they take steps to minimize weld distortion.

Welders cut, shape and join pieces of metal for both industrial and architectural projects. Key factors a welder should have are a skilful hand, a discerning eye, excellent Welding in hollow sectionmathematical skills, the ability to understand engineering drawings and, of course, knowledge about different types of metals and how to effectively operate different welding equipment and methodologies. High-end metal fabrication projects can be ruined by low-end welding skills, which is why, here at Rowtec, we take great pride in our work with our experienced welders.

Three of the most common welding fabrication processes used for metal fabrication are MIG, TIG and Stick Welding. The process used in a given project is determined by metal thickness, finish, location and application.

 

  • MIG welding is a great starting point for new welders and can be used with all types of metals and alloys. MIG welding is an arc welding process in which a continuous solid wire electrode is fed through the welding gun and into the weld pool, joining the two base materials together.

 

  • TIG is a more versatile welding process and requires a high level of skill. TIG welding can be sued to weld aluminium, copper, titanium etc; and even two dissimilar metals. This process is ideally suited to handling tricky welds such as S-Shapes, curves, corners or where the weld is going to be visible and where accuracy and finish is important.

 

  • As a manual welding process, Stick welding requires an even higher skill level. Stick welding, or shielded metal arc welding, has been around more than 100 years. Even though it’s an old welding process, it still plays an important role in manufacturing, with about 150 million to 200 million pounds of electrodes consumed in North America each year.
Read More
Workshop

04 Jun Sheet Steel Fabrication and Ironworks

It may seem that sheet steel fabrication and ironworks have similar jobs, both are classed as highly skilled trades, but both have different skill sets and utilize different tools and materials. Usually, ironwork is more structural and sheet metal fabrication is more functional.

WorkshopIRONWORKERS

An ironworks or iron works is a building site where iron Is smelted and where heavy iron and steel products are made. An integrated ironworks in the 19thcentury usually included one or more blast furnaces and a number of pudding furnaces or a foundry with or without other kinds of ironworks.

There are three main types of ironworkers:

  • Structural ironworkers erect the framework of bridges, buildings, stadiums, amusement park rides, bank vaults and other large scale industrial metal projects according to engineer blueprints.
  • Ornamental ironworkers, or finishers, are responsible for the more architectural metal elements such as window frames, stairways, catwalks, railings, fencing, gates and building entranceways. This ironwork requires a high skill in arc welding.
  • Reinforcing ironworkers, or rodbusters, is to strengthen structures. These are the workers who place a tie rebar, and reinforce concrete footings, slabs, bridge frame work and building structures.

 

SHEET METAL FABRICATIONS

These skilled tradesmen frequently work in metal fabrication shops or at manufacturing plants and specialise in fabrication, installation or maintenance, but may also perform tasks in all three areas. There is a long list of fabrications that can be produced by sheet metal workers, including roofs and rain gutters, heating and cooling systems, handrails, and more. When fabricating using sheet metal you have to take into consideration the thickness, tensile strength, manufacturing method and quality. There are as many types of sheet metal as there are types of metal, most commonly used ones are aluminium, steel, stainless steel, zinc, copper and a variety of alloys.

Read More
Workshop Welding

18 May Welding In Dorset

Workshop WeldingHere at Rowtecour workshop is constantly busy with new materials coming in and finished products going out. We use both MIG and TIG welding within our workshop, MIG stands for ‘Metal Inert Gas’ and TIG means ‘Tungsten Inert Gas’.

Welding Definitions

MIG welding is an arc welding process in which a continuous solid wire electrode is fed through a welding gun and into the weld pool, joining the two base materials together. A shielding gas is also sent through the welding gun and protects the weld pool from contamination. The technical name for it is ‘Gas Metal Arc Welding’, or GMAW; the slang name for it is ‘Wire Welding’. We tend to use MIG welding for the majority of our projects here at Rowtec.

TIG welding, also known as ‘Gas Tungsten Arc Welding’ (GTAW), is an arc welding process that uses a non-consumable tungsten electrode to produce the weld. The weld area and electrode are protected from oxidation or other atmosphere contamination by an inert shielding gas, argon or helium, and a filler metal is normally used, though some welds, known as autogenous welds do not require it.

Our Philosophy

Here at Rowtec, we will not let a product go out the door unless we are 100% happy with the quality of it, so you can count on us providing our best work each and every time. We take great care and attention when it comes to the production of work. We triple check all measurements and materials to guarantee the best end product for our clients. All of our fabricators have gained years of experience in this industry and provide quality work on every project thrown their way.

Contact Us Today

If you are after a quote or want to know a bit more information, call us today on 01202 882211 or send us an email to info@rowtecdorsetltd.co.uk and we’ll be more than happy to help.

Read More