Posted by: heatsschoolofweldingtechnology | August 6, 2009

Bend Testing

What is bend testing and why do we do it?

A Welder test specimen is being tested through a guided bend test while a Certified Sr. Welding Inspector is witnessing

A Welder test specimen is being tested through a guided bend test while a Certified Sr. Welding Inspector is witnessing

Bend testing is a type of  destructive testing of weldment. Bending tests are carried out to ensure that a metal has sufficient ductility to stand bending without fracturing. A standard specimen is bent through a specified arc and in the case of strip, the direction of grain flow is noted and whether the bend is with or across the grain. This test is quantitative test only.  It is done for Welder’s Qualification Test and Welding Procudure Qualification.

Bend testing is done either by side bend test, root bend or face bend test or combination thereof depending on the project or code requirements.

As per ASME IX, welder’s test piece shall be checked by 100% visual inspection plus bend test or in lieu of bend test, radiographic testing. However, many projects are requiring both the  bend test and radiographic testing. Bend test is done after acceptance of radiographic testing. If in case, the test piece passed the radiographic testing and failed the bend testing, the overall result will be FAILED.

Posted by: heatsschoolofweldingtechnology | August 6, 2009

Fabrication of Tank

One area of welding work is the fabrication of tanks and pressure vessels. Tanks can be a water storage tank, chemical

A Tank is being fabricated onsite

A Tank is being fabricated onsite

storage tank, gasoline tank, diesel tank ect. while pressure vessels are those used at high pressure.

Welders on this work are plate welders only but qualified under ASME IX.

Fabrication of tanks and pressure vessels is very interesting and challenging. The hardest thing on this job is when you are doing welding inside which is very very hot especially when its under the sun. Welders on this area are compensated very well like pipe welders.

Above picture are sample of tanks and pressure vessels.

Posted by: heatsschoolofweldingtechnology | July 23, 2009

Heats Instructor attended Technical Seminar

The Sr. Welding Instructor of Heats School of Welding Technology, Inc. attended Technical Seminar in Plasma Cutting Process.

The seminar was conducted last July 22, 2009 and was titled PLASMA CUTTING PROCESS presented by Mr. Boeh Ringer and sponsored by ESAB Asia and Center Industrial Supply Corporation.

Continous education through seminars is very helpful to Heats teaching force. The lessons they learned from the seminars will be taught to their students. Heats Management is very active in sending their teaching force in technical seminars. They believe the idea that a fully trained personnel will be more productive in his area of responsiblity.

The Heats Sr. Welding Instructor also attended Welding Inspector’s Course last May 25-29, 2009 conducted in Heats Training room.

Posted by: heatsschoolofweldingtechnology | July 22, 2009

Welding Inspector’s Course graduate landed a job in Bataan

One of the graduates of Welding Inspector’s Course which was conducted last May 25-29, 2009 landed a job in Bataan.

Alvin Santiago now works in an LPG refilling station (Liquigaz Phils. Inc) in Mariveles Bataan. LPG refilling station is a good start for a WI graduate. Fabrication, installation and maintenance including Non destructive testing and Welding Inspection of LPG Mother Tanks & Piping are some of the knowledge that you can learn in a refilling station.

The code and specification used in LPG refilling stations is the ASME VIII Div. 1 and the project specification by the Gas Supplier which in most cases in the Philippines is the Shell Philippines.

To Alvin, congratulations.

Posted by: heatsschoolofweldingtechnology | July 22, 2009

Filipino Welders In-demand Than Other Workers


According to the Technical Education Skills Development Authority (TESDA), compared to other skilled workers, Filipino welders are more in-demand here in the Philippines and abroad. 

For the thousands of OFW flying abroad yearly, a big percentage of them are welders. Normally TIG welders are the most in-demand, next is the SMAW Pipe Welder and then SMAW Plate Welders. 

TIG Welders and SMAW Pipe Welders are commonly hired in the construction of refineries, pipelines, gas plants, chemical plants, LNG Plants, Petrochemical Plant, Offshore pipelines, Offshore Topside, fabrication shops and many others. Plate welders are commonly hired in the construction of buildings, vessels, tanks, structural and shipyard.

The lowest level of welding is the SMAW Plate Welder. Plate welder can upgrade his qualification by attending training in SMAW Pipe course (SMAW NCII) or by experience in the construction industry on piping works. SMAW Pipe Welders can upgrade his qualification into a TIG Welder by attending GTAW NCII course. Most often, due to the high cost of argon, companies does not allow their welder to train in GTAW while they are employed with them, but some companies are allowing their SMAW Welders to learn GTAW. The other way of upgrading is by attending a GTAW NCII Course.

The three level of welding stated above (SMAW NCI, SMAW NCII & GTAW NCII) are offered by HEATS SCHOOL OF WELDING TECHNOLOGY, INC. Heats can make a zero knowledgeable person in a high skilled Plate Welder in 6 weeks, can make a Plate welder into a high skilled Pipe welder in 6 weeks and can make a Pipe Welder into a highly skilled TIG Welder in 6 weeks.

We recommend that graduates of SMAW NCI, SMAW NCII or GTAW NCII should work locally for at least one to two years before working overseas so that they will be more mature in welding profession. 

Welders are highly in demand in countries like North America, Europe, Middle East, as well as in some developing countries in Asia.

Posted by: heatsschoolofweldingtechnology | July 21, 2009

Heat Input

Heat Input is very important in Welding Procedure. The recommended Heat Input value by the steel manufacturers should be strictly followed during qaulification of Welding Procedure.

The formula for Heat Input is:

Heat Input (Joules/inch) = (Volts x Amps x 60) / Travel Speed (inch/min)

Posted by: heatsschoolofweldingtechnology | July 21, 2009


In accordance to the definition of AWS D1.1, peening is the mechanical working of metals using impact blows.

As per section 5.27 of AWS D1.1, peening may be used on intermediate layers for control of shrinkage stresses in thick welds to prevent cracking or distortion or both. No peening shall be done on the root or surface layer of the weld or base metal at the edges of the weld except as provided in section Care should be taken to prevent overlapping or cracking of the weld or base metal.

The use of manual slag hammers, chisels, and lightweight vibrating tools for the removal of slag and spatter is allowed and shall not be considered peening.

Posted by: heatsschoolofweldingtechnology | July 21, 2009

6GR Position

6GR Welding Position is in accordance with AWS D1.1 Structual Welding Code – Steel (An American National

6GR Welding Position in accordance with AWS D1.1

6GR Welding Position in accordance with AWS D1.1

Standard). This is often called restriction welding, which the “R” in the term 6GR is with restriction ring, while 6G in the term 6GR is the same as in 6G position. The difference with the 6G and 6GR position is the restriction ring and the the bevel preparation. 6G is prepared as single vee at 45 degrees postion with the horizontal plane, while the 6GR bevel preparation is single bevel and the two connecting pipe has different thicknesses, one is thicker of at least 4-6mm. The thicker pipe is the one with no bevel preparation, and the thinner pipe is prepared in single bevel. An example of 6GR postion is shown in the picture on the right of this article. This is the hardest welding test position in Shielded Metal Arc Welding. This position is normally used in the welding of Offshore platform structure such as offshore jacket, beams, decks, boatlanding, underside and other parts of the offshore platform. This position qualifies you to weld TKY joints. This one of the most highly paid welding position aside from GTAW Welder. It si suggested that you have 6GR SMAW, 6G sMAW, 6G GTAW/SMAW (Combination) and 6G GTAW qualification in order for you to have the higher advantage of any welder in the industry. Additional 6G GTAW Stainless Steel and Duplex is an added advantage.

Posted by: heatsschoolofweldingtechnology | July 19, 2009

Welding as career


Welders are employed in a variety of industries. Some work in steel fabrication company, auto manufacturing, refrigeration, aviation industry, shipbuilding and Oil & gas industry.

The starting pay for welders in the Philippines is from P5,000/month up to P15,000/month. While experienced welders working overseas is from P30,000/month up to P250,000/month depending on the company and location they are working.

Filipino welders obtain training at technical colleges, trade schools, and some starts initially as helpers in fabrication companies. 

Heats School of Welding Technology, Inc. offer the SMAW NC I, SMAW NC II and GTAW NC II programs. These programs teach welding, blueprint reading and welding quality control. 

Welders work 8 hours a day, 6 days a week in the Philippines while overseas, some works for 8 hours a day and some works for 10 hours a day.

There are various countries where the  filipino welders are working. Some of those are Saudi Arabia, Abu Dhabi, Dubai, Qatar, Oman, Bahrain, Angola, Sudan, Iran, Kasakhztan, Russia, Singapore, Malaysia, Thailand, Brunei and many more. The most popular place and where most of the filipino welders work is in Saudi Arabia.

Posted by: heatsschoolofweldingtechnology | July 18, 2009

Danding launches innovative study program for youth in Tarlac

In 2007, Eduardo Cojuangco Jr. through Eduardo Cojuangco Foundation, Inc (ECF) launched an innovative

Boss Danding. His Philanthropic Work helps thousands of Tarlaquenos. Thousands of his scholars are now professionals and successful. The HSWTI President is one of them.

Boss Danding. His Philanthropic Work helps thousands of Tarlaquenos. Thousands of his scholars are now professionals and successful. The HSWTI President is one of them.

technical-vocational (tech-voc) scholarship program for the less fortuante youth in Tarlac.

This news was learned by the Heats School of Welding Technology, Inc. President through his previous co-scholar in ECF. Mr. Jose, the President of HSWTI, was a recipient of ECF Scholarship Grant during his college days and one of the fruits of Danding’s philanthropic work.

Mr. Jose is now trying to find a ways to contact ECF Administration to launch the same program in HSWTI. This program will be a big help to Tarlaquenos especially our less fortunate kababayans.

For those interested to grab this opportunity, we advice you to inquire in ECF office located in Romulo Blvd., Tarlac City, opposite of Tarlac State University nearby Tarlac First Baptist Church.

« Newer Posts - Older Posts »



Get every new post delivered to your Inbox.

Join 1,970 other followers