Steel fabrication at PRV Engineering

steel fabrication construction siteAlthough the construction of steel buildings began way back in the 20th century, their use became more widespread during World War II and significantly expanded after the war when steel became more readily available.

Steel buildings have been widely accepted, in part due to cost efficiency. What’s more, the range of application has expanded with improved materials, products and design capabilities and with the availability of computer aided design software.

Here at PRV Engineering we offer a first-class steel framework fabrication and concreting service. Designed as an extension to the services we already provide for the construction industry, and for businesses that are very cost conscious, we believe our new facility is the ideal solution. Continue reading

Further changes to CE marking in the construction industry

steel_bridge_structureWhat is CE Marking?

CE Marking is the conformity marking for products sold in the European Union and has been a common requirement on things such as toys and electrical goods for many years. It consists of the CE-Logo and, if applicable, the four digit identification number of the notified body involved in the conformity assessment procedure.

What does the CE mark mean?

By affixing the CE mark a person takes on responsibility for the conformity of the product. CE marking is a visible sign that the product complies with all relevant product supply law.Its presence together with the Declaration of Conformity gives the product to which it is affixed presumption of conformity with relevant product safety Directives. CE marked products are entitled to free movement throughout the European market.

The construction industry has gone through one of the most significant changes for a decade this year, when CE Marking of construction products became mandatory in all member states throughout the European Union and the European Economic Area. It’s also preparing itself for further change. Continue reading

What You Should Know About Plasma Cutting Methods

Plasma cutting has been in use since the 1960s.  Today it is a widely used metal cutting process.  Unlike conventional “metal against metal” cutting, plasma cutting doesn’t produce metal chips so it can create accurate cuts.

Although initially plasma cutting was quite time consuming and expensive, it emerged as a more user-friendly, economical and productive method by the 1980s, due to the application of modern engineering techniques.

Here we discuss the different methods of plasma cutting as well as how it works, applications and pros and cons of utilising it in an engineering application.

Plasma Cutting Processes

First, there are three major processes used for plasma cutting:

Air plasma – In general, a hand-torch is used for metal cutting in this system. It is considered to be the most portable plasma cutting option. In most cases, it uses inverter power supply technology. The important features of this process include:

    • The system can run within a power output range of 12 amps to 120 amps
    • Cutting thicknesses can be achieved as low as 1/8 inch

Mechanized plasma – This conventional plasma cutting system is extensively used in shipyards, steel service centers and heavy-equipment manufacturing companies in order to obtain high productivity. The notable features of this technique are:

    • Uses machine-mountable torches
    • Available in amperages ranging from 130 amps to 1,000 amps
    • Cutting thicknesses of up to 61⁄4 inches can be achieved
    • It requires constant manual monitoring on different factors, such as gas flow, pressure, arc voltage

High definition plasma – This system has emerged as the most viable metal cutting solution in the industry over the last two decades. After its introduction in the 1990s, it went through several research and development processes. High quality cuts, economical operating cost and high cutting speeds are some of the major benefits of using this system. Initially, it had a thickness capacity of 3⁄8 inches. However, with advancements in engineering technology, now cutting thicknesses of up to 3 inches are easily achieved.

Some of the important features of this process are:

  • In order to achieve quality in cutting, plasma cutting equires monitoring by expert operators
  • Cutting thicknesses can be as low as 26 gauge to as big as 3 inches. When used on carbon steel, thickness capacity of up to 61⁄4 inch is also achievable
  • It requires power levels ranging from 130 amps to 800 amps
  • Technology updates on plasma cutting methods are continuing to evolve in order to obtain better results in cut quality and productivity

How do you see this kind of technology helping your manufacturing processes in the future? Let us know in the comments below.

CAD/CAM Post Processing Explained

CAD and CAM software are used to design and operate machinery but the machines then require a final post processor to ensure that the code that reaches them is readable to optimise the machine’s operation.Most engineers are familiar with this process, however, in this post we will explain how the system works so that anyone can understand it.

Metal Fabrication Services: Types of Conveyor Systems

Metal fabrication services play a major role in the manufacturing industries sector especially when it comes to producing material handling equipment. Material handling forms one of the most important aspects of manufacturing industries and is used in a number of sectors from steel and mining industries to cement and construction industries.  To manufacture this kind of equipment metal fabrication services are used resulting in the production of various types of material handling equipment such as positioning equipment, and loading equipment. Among the various material handling equipment used today in industries, conveyor systems are perhaps the most important. In this article we will take a look at some of the most important types of sorting conveyor systems being produced by metal fabrication services. Continue reading