Defining Coating Inspection & Its Need

Coating Inspection

In the field of manufacturing, you already know how important it is to follow the correct sequence of different operations in every aspect. There are various types of coating inspections which fall in the category of NDT services. These processes are executed by highly skilled and trained personnel to read the classification and efficiency of the material. The techniques that are included in the inspections are typically based on different welding codes like, ISO, ASME, API, EN and Australian Standard.

Before conducting any coating inspections, magnetic particle and liquid penetrant testing are done. However, this depends on the type of composition of the materials and the achievement the owner is looking for.

What is the need for coating inspection?

Coating inspection is typically used to figure out ductility, hardness and tensile strength involving the parts that take most of the stress. Thus, without breaking or damaging the material, with the help of NDT, it becomes easy to determine the breaking point. This means that prevention of major accidents becomes easy while maintaining a safe working ground.

Inspection procedure

The procedures of coating inspection include electromagnetic waves, used to gauge the thickness of a specific coating, and measuring the heat distribution (thermography) of the substance. This process determines the quality of the coating (binding to its substrate).

Also, lasers are used to measure the profile of the surface without physically harming the substrate. In the industry of coating inspection, sometimes the use of permanent base coating helps to determine the ductility of the material. The applied coating itself fluoresces under a black light. This allows inspectors to determine the imperfections in the base quite easily.

Gauges and industrial coatings

Various electronic gauges are the most significant contribution to the field of coating inspections. These equipment nowadays are standard inspection devices for quality assurance and control in the industry. These tools are also capable of performing other functions like, ultrasonic waves to figure out the dry film thickness of an applied coating.

The importance

Coating inspection is one of the most important sections in the field of NDT. To protect the superiority of the material, accurate measuring is important, which can only be done through qualified inspectors in Melbourne. They precisely allow the industry to perform as per the mentioned specifications to avoid forensic complications.

Before hiring any NDT company, it’s crucial to check whether or not they are qualified from the WTA and perform any documentation service for inexperienced welders.


Important Questions To Consider While Certifying Your Welders


Important Questions To Consider While

If you want to enhance your business profits and establish a reputation in the market you should definitely certify your welders to provide quality services. A team of well trained NDT personnels means great achievement in the field of testing and welding. However, there are several questions that often appear when it comes to getting certified from a certifying board.

So, here are some to make the process easier:

Can an employer choose a particular welding inspector who has previously obtained recognition from Regulatory Authorities?

It is the right of an employer or owner to employ whoever they wish to. They just need to comply with the appropriate standards and regulations proposed by the government. AICIP offers them the opportunity to utilise a nationally recognised, independent certification program to make decisions and assist the responsibilities properly to become a competent person.

Does AICIP insist on mandatory training requirements for a particular field?

No, AICIP has no prerequisites for anyone who wishes to apply for an examination. AICIP has produced a list of competencies for novice inspectors on which the questions are set. It does not have any mandatory requirement.

What is the rough estimate of the examination cost?

The cost of the examination fees is based on the anticipated number of candidates
and conducting the examinations on a national basis. AICIP is independent of all government funding agencies and solely relies on sponsorship to administer the examination.

Will certificates of competency licences be recognised for exemption from AICIP examinations?

AICIP has not been able to confidently state that a person is competent enough based on the wide range and diversity of documents put forward for exemptions. AICIP has not found such a solution for in-service inspectors and thus, has decided that all candidates seeking certification must undertake the examinations.

However, if a person is certified for welding corrosion testing from a foreign country, mutual recognition agreements occur between AICIP and that specific certifying board takes the final decision.

Can a person sit for the Senior Inspector Level without applying for the In-Service Inspector Level?

Candidates must complete the basic In-service Inspector Level before proceeding to the Senior Inspector Level.

When does a re-Certification take effect?

Re-certification becomes a necessity 5 years after examination.

If you want to train your employees to deliver the best services in Melbourne, hire a certified NDT expert who provide all kinds of NDT training.

Weld Evaluation Of Camshafts Using Ultrasonic Testing

Generally, ultrasonic testing (UT) is used to figure out the quality of brazed joints. With the help of this unique process, evaluating brazing quality becomes simple. It uses a focused transducer, and ultrasonic waves along the radius of the shaft are focused on the brazed joint. By monitoring the amplitude of the echoes returning from the joint position, one can evaluate the brazing quality easily.

When the echo becomes weak, it indicates a strong bond where most of the ultrasonic waves travel through the joint. On the other hand, a strong echo means that there is no mechanical bonding, causing the ultrasonic waves to bounce back at the interface. A reference sample with a known unbonded area can be used to set the ultrasonic machine sensitivity and evaluate the amount or percentage of any flaw in the part.



Camshafts are typically manufactured by machining cast iron, forged steel or billets down to the desired shape. Some manufacturers have started to produce camshafts by joining cams to shafts with a brazed joint. Due to the force being potentially applied to the brazed joint, quality control is required to ensure brazing quality and that a sufficient percentage of cam is solidly brazed to the shaft. Ultrasonic testing must be conducted only through experts who provide certified non destructive testing in Melbourne.

Camshaft geometry

A camshaft is basically a shaft with cams distributed along its length. Cams can come in different shapes with one common characteristic: there is at least one protuberance found along the circumference, resulting in an irregular shape. A common model is a cam with a nose (lobe), where the brazed joint is not parallel to the outer surface. In such a situation, there is little to no probability of recording an echo from the joint; this is what will be referred to as the uninspectable area of a cam.

Brazed joint evaluation

It is not always necessary to inspect each individual part of the camshaft to control the quality of a production. A statistical analysis can be performed on sampled parts taken from the production line. The same logic applies to the uninspectable area of the cams; a statistical analysis can still be performed by monitoring the percentage of good brazing within the inspectable portion of the cams. When using ultrasounds to monitor the brazed joint quality, the evaluation must be normalized to ratio of inspectable area.

As ultrasonic testing is sensitive to both surface and sub-surface discontinuities, be sure to hire the certified personnel to figure out the flaws properly and end on a positive note.

Significance of Pressure Vessel Inspection

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A pressure vessel contains fluids under intense pressure or vacuum. Due to this feature, a pressure vessel can be potentially dangerous if it fails. There are authorised inspectors for pressure vessels who specify any faults to ensure that the units are safe for use. Pressure vessel inspection is a detailed review of the same to assure that it complies with the technical standards.

Pressure Vessels can be dangerous if faulty

The massive expansion of energy released from a pressure vessel can cause devastating damage. Even a simple compressed air cylinder can claim lives if it explodes. But do you know that pressure vessels are everywhere in our daily life? From refineries to mineral processing plants, dry cleaners, wineries, hospitals, your local tire dealer and even the pressure cooker all fall in the category of pressure vessels. They just differ in size and functionality but have the same working procedures.
However, heavy duty industrial pressure vessels are very complex processing structures. They may weigh hundreds of tons and are connected to a variety of pipelines, other pressure vessels and boilers. AICIP pressure vessel inspector in Melbourne can help you to detect faults in such intricate heavy machineries.

Now, what is AICIP?

AICIP is a non profit organisation in the field of Australian Institute for the Certification of Inspection Personnel. It is a body which certifies NDT inspectors so that they can have the appropriate authorisation to conduct the inspection job. It is incorporated with the Department of Fair Trading (a NSW Consumer Protection Agency) under the Associations Incorporation Act 1984. It has Australian Registered Body status with the Australian Securities Commission.

Manufacturing Pressure Vessels to comply with standards

At the manufacturing phase, it is essential that an experienced pressure vessel designer produces a suitable design. The manufactured vessel must then be inspected through an inspector to determine correct fabrication and welding. For the production purpose, the vessel inspector figures out the manufacturing and load taking capability of the vessel.
The qualified AICIP inspector verifies the entire process as per the Australian standards. It is the inspector’s responsibility to determine future faults of a welding or the material itself. This is why it is recommended to hire an inspection team to work as per the legal requirements and caring for your employees.
For designing and inspecting the volume and pressure, the processes and types of product under pressure are all considered to determine hazard level of the pressure vessel.

Pressure vessel inspection is a crucial part of an industry dealing with heavy duty machineries. If you haven’t made such a consideration yet, call an AICIP certified inspector right away to carry on your business safely.

What Is NDT? Which Is The Most Common NDT Method?

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This blog is all about providing a general information about NDT to people familiar with the process. So what is NDT and what are the techniques applied in it?

NDT stands for Non Destructive Testing, which is a process of evaluating, testing and inspecting different materials and their components. In other words, the part of the machine again becomes useful after conducting this specialised testing.

The test is conducted to determine a material’s physical components like ductility, impact resistance, fracture toughness, fatigue strength, and tensile strength.

Different NDT methods and their benefits

There are various types of NDT methods. Some of the common ones are Magnetic Particle Testing, Electromagnetic Testing, Guided Wave Testing and many more. Each of the techniques are conducted on different applications with various advantages. The tests are a form of solution to upgrade industrial environment and provide commercial independence.

The most common method of NDT

1.Welding Corrosion Testing  is one of the most common methods of non destructive testing. Welding inspection is further categorised into two forms, Radiographic Testing and Ultrasonic Testing. Obviously, these tests are conducted to determine the internal integrity of a weld without destroying the welded component. Let’s take a deeper look into these specialised tests.

2. Radiographic Testing – In this method X-rays are used from a tube which is X shaped. In some cases, gamma rays are also used from a radioactive isotope. The main objective of radiographic testing is similar to medical radiography. In this case, rather than passing the penetrative radiation through human body, it is passed through a solid object on a photographic film. The photographic film is the final image of an object’s internal structure. If the image appears whitish, it means the body of the object is thin or porous. On the contrary, if an image appears dark, it means that the walls of the object are at their best quality. In actual, an object’s thickness and density depend upon the amount of energy (radiation) absorbed.

3. Ultrasonic Testing – In this method, mechanical vibrations are used which are similar to sound waves in a high frequency. A beam of ultrasonic energy is passed through an object without damaging it. If the energy reflects it means it is a cause of discontinuity.

Thus, radiographic and ultrasonic testing are simplified.

The advantages of NDT are enormous when the quality and productivity are considered. After conducting all these tests, manufactured items are considered safe and legal.