Metal fabrication encompasses a wide array of activities including welding, boiler-making, blacksmithing, millwrighting, and ironworking. An Ontario machine shop may provide a mixture of these tasks along with a mix of prototyping, machining, field operations, and other related services. IHS Engineering360, a global resource for engineering information, emphasized that these procedures are inherently dangerous and that’s why they are usually outsourced to specialized contractors who provide such services. Read more
Industrial millwright services play an important role in ensuring the continuation of essential standards on a large scale across different industries. In industrial applications, one of the most important components is logistics. This aspect becomes especially complex when involving overseas transactions. Ships, or any other type of aquatic vessels, must conform to a set of standards to ensure safety and environment-friendliness. Read more
For many companies and applications, fabrication is more than an answer to various needs. It plays an integral role within the production, assembly, and more of parts. In addition it aids in assemblies, tooling, and the general production of equipment to mention just a few possibilities.
From medical devices all the way to the components in aircraft and automotive manufacturing processes, fabrication is heavily relied upon. However, this means that there are many questions about the various different types of fabrication as well. Here we will explain some of the types and uses and answer many of the most frequently asked questions we have received over the years.
For heavy fabrication, the capabilities include metal forming, cuts by lasers, shearing, basic welding services and more. Projects of any size from the prototype stage to complete production runs can be handled through heavy fabrication. Some example projects are structural assemblies, frame construction for heavy duty projects, fabrication of heavy plates, and much more. Mill operations from small to large be done. Material capabilities can include most alloys, carbon steel, aluminum, and stainless steel.
Question: What are some previous examples of heavy fabrication as requested by clients?
Answer: Some of our previously produced items include frames for tow motors, large tanks, and construction sidewalls.
Regarding The Fabrication Of Sheet Metal
Beginning at prototyping and finishing with production, sheet metal fabrication includes many different phases. These range from forming, punching, shearing, welding and much more. Also included is light gauge and heavy gauge construction for plates and frames. Clients in the automotive, medical, consumer product, and aerospace industries are served by precision sheet metal fabrication. Run for both close tolerance large fabrication and large volume production are also possible.
Question: Which types of materials can the lasers cut through? In addition, what is the maximum thickness that this material can be before it cannot be cut?
Answer: Steel can be cut up to .886 of an inch, stainless steel up to .7 of an inch, aluminum can be cut at up to .630 of an inch.
Regarding General Welding
When a project requires either close tolerance with extensive fixturing or simple production welding, it will generally use some form of precision welding to achieve these needs. No matter the size of a project, it will be done to very exacting specifications. Even on more complex projects simple weldments are possible. Large frames do not preclude this simplicity either.
The use of 2-station robotic welding can save both money and time. This is because it enable continuous and simultaneous production to take place.
Question: What is the meaning of the terms “Mig” and “Tig” in regards to welding?
Answer: Mig is short for Metal Inert Gas welding. This is a common use, high deposition rate process. The process involves wire being fed consistently from a spool during the welding process. This is sometimes referred to as “semi-automatic welding.”
Tig is short for Gas Tungsten Arc welding. This process involves forming an arc between the metal being welded and a tungsten electrode. This process is generally used when high quality and precision are necessary.
The right grinding material requires that you consider the material hardness, the piece of metal to be worked on and the type of finish required.
The first mistake: Grinding wheel
Most of the grinding wheels are made up of the abrasive and the bond used for cutting and holding the abrasive in place respectively. The grit determines the size of the abrasive to be used. When the grit number is low, a smaller abrasive must be used.Using a too coarse of grinding wheel for the surface finish may not give you the required results. Instead, you can obtain a finer finish by slowing down the dressing federate even though it can result in dulling the abrasive. A dull wheel generates more heat and result in a lot of grinding force that is not good for quality productivity. Using a grit that has sharp abrasive grains will give better results compared to a grit wheel with abrasive grains. The following chart gives the size of grit required for the given finish.
Mistake 2: Dressing
Regular dressing may not be necessary. In fact a proper grinding wheel can allow for grinding multiple wheels without necessarily dressing the wheel. If more material is removed from the abrasive grain, it becomes dull. Thus, dressing every part may not be necessary. Reducing the frequency of dress has an added advantage; it reduces the cycle time extending the life of the dressing diamond and the grinding wheel. This reduces the cost and enhances productivity.
Note: the diamond dresser can also have an effect on the quality as well as the general productivity. Thus, the simplest method of dressing is where a single point diamond is used. However, care must be taken when using this single point diamond since it requires frequent rotation. When this is done regularly, the single diamond will wear out and develop a flat.
A single point diamond that has developed a flat makes the abrasive grain to become dull even when the grinding wheel is dressed. To dress the grinding wheel rotary dressing which uses an electric spindle to rotate may be employed. The rotary dressing is thus, a better alternative since it provides a consistent dress and reduces the possibility of the dressing disc to wear and develop flats as it is in the case of a single point diamond.
This was valuable information acquired years ago and improved productivity and the quality of my CNC machining endeavours.
Canadian manufacturing continues its slow, but steady, growth. Shop Metalworking Technology, the premier magazine for Canadian metal works and manufacturing industries, says that new export orders went up to 54.5 percent this December, compared to October’s 51.3 percent, thanks to gains made in the U.S. economy and the Canadian dollar. Industry experts are convinced that this growth will persist throughout the rest of 2014, and perhaps the first quarter of next year.
With about 35.6 million residents, Canada definitely has a high energy demand that befits a thoroughly developed nation. Fortunately, power plants like those in Point Lepreau produce significant amounts of electricity to supply those needs. However, back in April, the facility was briefly put out of commission. The reason? A problem with the turbine pump. This article from CBC News provided further details on this event: Read more
Ever since the Industrial Revolution, the diverse skills and the continuous labor of millwrights have helped shaped multiple disciplines in today’s mechanized world. Their services are still called upon today, especially when it comes to installing, maintaining, and repairing industrial machinery and other related equipment. In Ontario, millwrights who are working in industry and manufacturing are called Industrial Millwrights or Mechanics, and they can be tasked to repair far bigger machines like the two ships of the Canadian Pacific navy that have been involved in an unfortunate incident: Read more
Like humans, machines have hearts, too. Just as the human body can’t function without the heart pumping blood into its system, a machine, particularly one that comes with a hydraulic system, will fail to work properly without a pump. Machineries and large industrial facilities need fluid power to start and continue operation, and hydraulic pumps can provide just that. Little wonder then that the pump is considered to be the heart of industry.
The pump used in manufacturing and other industrial purposes is a complex assembly of various essential components. Their functionality lies in their correct alignment and configuration. A slight inaccuracy in their assembly could mean significant decrease in efficiency or, worse, damage to the system. In an article for WaterWorld.com, independent consulting engineer Allan R. Budris discusses the importance of maintaining alignment in pumps and motors.
Good alignment has been demonstrated to lead to:
Lower energy losses due to friction and vibration
Increased productivity through time savings and repair avoidance
Reduced parts expense and lower inventory requirements
There are many different factors that influence a pump system’s alignment, which include wear, material buildup, and thermal distortion. Problems with alignment are generally difficult to fix considering a pump system’s limited alignment tolerance. They have to be carefully inspected and fixed by trusted industrial millwright services like Central Machine and Marine. Professional millwrights usually check the system for the following damage:
Coupling overheating and resulting component degradation
Extreme wear in gear couplings and component fatigue in dry element couplings
Pump and driver shaft fatigue failure
Pump and driver bearing overload, leading to failure or short bearing life
Destructive vibration events. Harmful machinery vibration is created whenever misalignment exists. Excessive pump vibration can shorten bearing and mechanical seal life.
Machine manufacturers continue to improve pump systems to minimize the potential for misalignment. Part of this advancement is the addition of alignment monitoring devices, including straight edge and feeler gauges, dial indicators, and laser-optic devices. However, these devices can only do so much. Alignment issues may still arise due to mechanical breakdown, natural disaster, and system failure.
Pump alignment problems are often encountered by companies dealing with huge amounts of fluid, such as the petrochemical industry. They are the ones that greatly need the service of experienced millwrights whenever industrial pump repair is necessary. They are experts in assembling pump system components and sealing them for optimum functionality. They also perform maintenance of the system to keep it in shape under extreme conditions.
(Source: Benefits, Methods of Proper Pump to Motor Alignment, WaterWorld.com)