...Introduction Resistance welding covers a wide range of specific processes, mainly use for highly automated or even fully mechanized welding application, the majority in mass production. All these processes, except one (ESW, electroslag welding), need a mechanical clamping and pressurizing system to compress the workpiece areas intended to be welded prior to welding. Thus, these welding applications are categorized as resistance pressure welding processes (See figure 1-1) Figure 1-1 principal types of resistance weld In Resistance Spot Welding, passage of a relatively high welding current I [kA] throughout a locally compressed workpiece area (by means of an electrode force F [daN]) during a properly defined period of time t [cyc, ms] heats this area due to resistive heating following (Figure 1-2) Figure 1-2 principal of resistance of spot welding Values for Welding Force [daN], Welding Current [kA] and Welding Time [cyc, ms] are available in database format, and these values are commonly used to make a base setting to start from. Fine tuning within the parameter range (weldability lobe) can be done in order to optimise towards a specific application according to EN ISO 14327-2004 (Resistance welding – Procedures for determining the weldability lobe for resistance spot, projection and seam welding). Such a weldability lobe...
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...Fabfurnish Following my under graduation, to tap the taste of start ups and ever growing interest in marketing – I started working ……<framing this> The front end marketing analytics, where direct cum indirect interaction with the customers and their reaction pushed us how to increase the conversion rate and engagement with audiences. <need to frame this> Customer Insights – based on that taking further actions Launching the new campaigns on facebook and optimizing them on the key metrics like CTR(Cost to revenue Ratio),CPC(Cost per Click),CPV(Cost per Visit)– lowering the CRR (Cost to Revenue Ratio – inverse of ROI) bought down by 70%. Optimization was done on the basis of reports in which number are stacked up from Google Analytics and FB Power Editor to check the bounce rate and Conversion Rate Good with reports and reports making Engaging in Mobile as this was the time in India (late 2014) where mobile grew as a major player in the advertising industry and various different inventory of FB like MPA (multiple ads) and doing the category wise segmentation & performing the strategic group analysis which help in growth of 40% mobile revenue. - - -> key insight ran ads of those products which have low basket value (<1000 INR) since audience have more interaction for these products on mobile platform and thus increasing the funds in this segment and generating a 14 lac transaction in a single day through optimized reports * To show interest in...
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...and two 8-inch pieces of angle iron. The bar will serve as the top crossbar in your frame while the angle irons will join the frame to a wooden base. 3• Stand all three tubes on their ends, with the long tubes 5.5 inches apart. Place the short tube in between them and use an arc welder to weld the steel crossbar at their top ends, and the angle iron pieces on both sides of their bottom ends. This will make a rectangular metal frame with the short pipe in the middle of one short side. • 4 File or grind any rough edges from your frame, then paint it. The paint will dampen down any shavings. Once painted, it can be attached to a wooden base by passing screws through the holes in the angle iron piece. • 5 Make the press canister by welding a circular piece cut from your plate steel onto one end of a wide steel tube. Drill holes through the outside of the canister and file down any rough edges. • 6 Form the press piston by cutting another circle of plate steel just small enough to fit inside the press canister. On one side of the disk, weld a short length of pipe with a diameter big enough to fit snugly over the end of the short pipe in the press's frame. • 7 Chop off the bottom third of a round plastic jug and cut a hole in the center of it big enough for the middle pipe in your frame. This will collect the oil as it drips...
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...preheat holes or in a two-piece tip the cutting tip will overheat and explode. a. True b. False 4. A cutting torch is used for cutting, welding, and heating. a. True b. False 5. Most hand torches can cut metal up to seven inches thick. a. True b. False 6. It is possible to cut steel that is four feet thick. a. True b. False 7. Acetylene should be used in a two-piece cutting tip. a. True b. False 8. Acetylene cutting tips should be one piece with 1 to 6 preheat holes. a. True b. False 9. The chance of a flashback is less with low pressure regulator settings that with high pressure settings. a. True b. False 10. The oxyfuel gas cutting torch works as a result of the metal being rapidly melted. a. True b. False 11. Hard slag is easier than soft slag to remove. a. True b. False 12. Distortion is not a problem if the correct fuel gas is used. a. True b. False 13. By looking at the drag lines in a cut, you can determine whether the cut was made correctly or incorrectly. a. True b. False 14. The two major methods for controlling distortion while make a cut is making two parallel cuts at the same time and speed and making a short cut and skipping a strip to keep the plate from separating. a. True b. False 15. The advantaged of a combination welding and cutting...
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...Molding Methods Molding process is used to create intricate metal components. The mold material used to make these “molds” could be either temporary or permanent. Temporary molds are made up of refractory sands and resins. The temporary mold has to be broken to retrieve the cast. Permanent molds are made of ferrous materials and are normally employed for casting low melting point materials but this process is too costly. Because of this conundrum, most of the foundry industry has its castings produced using temporary mold materials. Compared to permanent molds, the temporary sand molds can cast high melting point materials and larger parts, while permanent molds can produce small castings of better quality and dimensional accuracy. Sand casting uses temporary sand molds to form complex metal components that can be made of almost any alloy. Sand casting has a relatively lower production rate as each time the part solidifies, the mold has to be broken to retrieve the part. The sand casting process makes use of a furnace, metal, pattern, and sand mold. The metal is melted in the furnace, ladled, and then poured into the cavity of the refractory sand molds. The sand mold is separated using “parting sad” and the solidified cast can be removed. Its relatively cheap and can even be used for steel foundry use. Apart from sand, a bonding agent such as clay is generally used. Water or some other moisturising agent is added to this mixture to develop strength and plasticity of the clay...
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...Variations of Joint Designs or Energy Directors For the design of plastic parts for assembly with ultrasonic energy, many recommendations exist to save time, energy and tooling modifications. The first step for a designer is to determine the most suitable joining technique. The following variations are possible: Ultrasonic Welding Ultrasonic Swaging, Staking, Spot-Welding Ultrasonic Insertion Ultrasonic Welding The molten material builds at the contact area of the energy director between the to be welded parts. The ultrasonic waves are transferred through the part to the joint area. Common "standard" joint designs include: Basic 90 Degree Energy Director 90 Degree Energy Director Step Joint 90 Degree Energy Director Tongue & Groove Herrmann Ultrasonics Mash Joint Double V-Point Tongue & Groove The recommended process examples listed above can be varied with inserted gaskets or in-molded 2K injection molded gaskets. Ultrasonic Swaging, Staking, Spot-Welding please click for enlargement In addition to conventional types of joint design for bonding injection molded plastic parts, ultrasonic welding can be used in a verity of forms to accomplish a mechanical bond when only one part is of thermoplastic material. Common applications include: Swaging, for deforming or bending an area of a plastic piece to trap the other part (of different plastic or other materials). Through swaging, different kinds of plastic parts...
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...operation. B&L manufactured approximately 40 trailers per year, with about two-thirds produced during the period from November to April. The outrigger bracket, part number T-178, was an accessory that could be used to secure oversized containers. The bracket consisted of four component parts welded together, and each trailer sold by B&L had 20 brackets – 10 per side. The Metal Fabricating Division was presently manufacturing the outrigger bracket. The subassembly parts – T-67, T-75, T-69, and T-77 – were processed on a burn table, which cut the raw material to size. Although the burn table could work with eight stations, this machine had only been operating with one station. The final assembly operation, T-70, was performed at a manual welding station. Manufacturing lead time for the outrigger bracket was two weeks. However, the Metal Fabricating Division had been able to coordinate supply and production with assembly operations. Consequently, finished inventory levels of the outrigger bracket were kept to a minimum. B&L’sinventory holding costs were 20 percent...
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...your First project Welding technology offer's society many beneficial ability's in enginering, construction, architecture, and also creates varied safety Concern's for the individual tradesmen' "tradeswomen"and their environment's. Welding Cover's a temperature range from 1500 F - 3000 ººF (800 ºC - 1635 ºC) and poses certain inevitable inherent risk's. As a skilled worker in this industry, one must proactively plan, prepare for any and all possible problem's, determine solution's and prepare preventative measures to use in case they arrive. Many welders reflecting on thier welding shop experience can admit they have acquired scars, acknowledge the dangers, and admit the necessity of demonstrating a professional respect for proper personal safety equipment and techniques. it has been said “If you play with fire you get burned” There are three main different risk's associated with welding including , heat, inhaling toxic fumes and electrical shock that are the most hazardous to your health, other various danger's include Gas leak, fire's and explosion's. In addition the extreme heat welding creates can burn you in many ways if not properly protected. There is ultraviolet light generated by the welding arc “electrical connection between welder and workpiece” that can cause severe radient heat, sunburns and increase your risk of skin cancer. Sparks can burn right through your gloves, boots and multiple layers of clothing even specialized welding coats! Using personal protection...
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...2003 ECI Conference on Advanced Materials for Construction of Bridges, Buildings, and Other Structures III % FILE: /main/production/doc/data/journals/services.bepress.com/advanced materials/assets/location.inc Switzerland% FILE: (cont) /main/production/doc/data/journals/services.bepress.com/eci/assets/proceedings/pdftitlepage.te Editors: % FILE: /main/production/doc/data/journals/services.bepress.com/advanced materials/assets/editors.incV Mistry, P.E., Office of Bridge Technology, Federal Highway Administration, USA Dr. Atorod Azizinamini, Ph.D., P.E., Civil Engineering Department, University of Nebraska, USA John M. Hooks, P.E., Office of Infrastructure Research & Development, Federal Highway Administration, USA % FILE: /main/production/doc/data/journals/services.bepress.com/eci/assets/proceedings/defines.tmpl (cont) Year Paper High Performance Steel For Highway Bridges Vasant C. Mistry ∗ ∗ Federal Highway Administration High Performance Steel For Highway Bridges Abstract All steels possess a combination of properties that determines how well steel performs. Strength, weldability, toughness, ductility, corrosion resistance, and formability are all important to determine how well steel performs. High-performance steel (HPS) can be defined as having an optimized balance of these properties to give maximum performance in bridge structures while remaining cost-effective. http://services.bepress.com/eci/advanced materials/1 Copyright c 2005 by the...
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...www.inspection for industry.com Inspection and Test Plan for Seel Structure Activity By No. Inspection and Test Plan Reference Document Acceptance Criteria Remark Verifying Document Manuf. 1 Pre Inspection Meeting Spec. Spec. TPI Client MOM H H H Before Manufacturing 2 DWG, Design, Calculation Document AISC AISC DWG, Calculation book H R A 3 WPS&PQR AWS D1.1 AWS D1.1 Welding Book H R A 4 Welder Qualification Certificates AWS D1.1 AWS D1.1 Certificates H R 5 NDT procedures AWS D1.1 AWS D1.1 Procedures H R 6 NDE Personnel Certificates AWS D1.1 AWS D1.1 Certificates H R 7 Painting Procedure SSPC SSPC Procedure H R Materials 8 Visual Inspection of Materials for General Appearance, Corrosion and Dimension ASTM ASTM Original Material Certificates H H 9 Welding Material Control ASME II/AWS ASMEII/AWS Report H W 10 Review of Certificates ASTM ASTM Certificates H H 1 A A www.inspection for industry.com 11 Inspection of Bolt , Nut and Washers (General Appearance, Corrosion and Dimension, Chemical Composion and Mechanical Properties) ASTM ASTM Report H W 12 Material Identification ASTM ASTM Report H H During Fabrication 13 Fit Up Inspection AWS D1.1 AWS D1.1 Report ...
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...Career Plan test. Therefore, the results should be based on my answers, which would be derived from my own personal learning and experiences. Based on this, I would have thought that the Career Plan would have made choices based on my 51 years of life. It did not. I have always enjoyed working with my hands. My father was an electrician. He was also very talented with other trades, such as pipe fitting, plumbing, and just about everything related to manual labor. To say that he taught me a lot is an understatement. I learned how to fill fire extinguishers at the age of 8. I also learned basic electrical wiring and was able to do complex motor control by the time I was 18. By the time I was 21, I was a certified welder in 4 different welding processes. Most recently, I built an electrical contracting business with 15 employees, and over $2 million dollars in yearly sales. My point is that I do very well with “hands-on” work. When my Career Interest Profile stated that I am “Realistic, Enterprising, and Social” I began reading the report with great interest. Imagine my disappointment when I further read that my career matches were a “Barista”, or a “Medical Assembler”. It also suggested that I explore jobs in “Cosmetology, Manicurist, and Make-up Artist”. Therefore, let me state that I will completely ignore my...
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...Tanay, Rizal Cel. No. 09051307787 Email Address: victor.saberdo@yahoo.com Passport No.: XX5643270 POSITION DESIRED WELDER WORKING EXPERIENCE Company : Taisei Address : Doha, Qatar Position : Welder Inclusive Date : May 10, 2010 – May 20, 2012 Job Description: • Preparation of tools, materials and permit needed on daily activities • 360o look around hazard identification • Full welding of I-beam, 10mm thick plate, stiffener of I-beam, 5mm thick plate support stainless I-6, 40x40 frame cladding and frame cp2 panel • And support all welding works in fabrication activities Company : KEPCO Philippines Corporation Address : Malaya Pililla, Rizal Position : Welder Inclusive Date : October 11, 2003 – January 20, 2007 Job Description: • Preparation tools materials and equipment of daily activities • Coordination with safety officer and supervisor for necessary hot work permit, before to proceed to welding work • Full welding, tank column, over head tank, railing, flat form, pipe, trusses, for light post. Company : Engineering & Construction of Asia Address : Makati, City Position : Scaffolder Inclusive Date : 1999 – 2002 Job Description: • Preparation of tools and materials • 360o look around hazard identification • Installing Ø assign every scaffold needed on a site putlog scaffold, birdcage scaffold Company...
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...Netherlands 4 Technip Oslo Norway 5 Statoil Stavanger Norway 6 DNV Oslo Norway Abstract Development of the Norne Satellite Field comprises the connection of the two oil fields Stær and Svale to the Norne FPSO (see Figure). A unique solution, a common, single pipeline was selected by Statoil for transport of the multiphase well stream from the two oil reservoirs. The Norne field is located at 66° North and subjected to strict environmental requirements. Therefore a Carbon steel pipeline, built with a corrosive resistant alloy layer ( CRA ), had been selected for the resistance against the corrosive fluid without the use of chemicals. An implication of this construction method is that the pipeline girth welds have to be made with an austenitic welding consumable (typically Inconel), which is very difficult to inspect using ultrasonic testing method. Furthermore the reeling process used for the pipeline installation require severe weld flaw detection capabilities. An extensive AUT-CRA qualification program has been utilized by Technip and Statoil to confirm that the proposed CRA inspection method meet the quality standards and requirements of DNV OS F101 Appendix E. Throughout the qualification process it has been verified that the CRA inspection technique adequately detects and qualitatively sizes the weld defects that also have been observed in destructive, microscopic evaluation. The so called Primary & Coincidence CRA inspection method* has been demonstrated to be very versatile in...
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... JULY INTAKE 2012 RESISTANCE WELDING REPORT NAME | TRAINEE ID | JACK LAI KAR HAO | 323265 | ALLEN LAW CHI SEAN | 323359 | L.F NAME : MOHD. FADZIL BIN MUSA CONTENTS m/s Overview and introduction 3 Variables in welding process 4 How is resistance welding work 5 Types of resistance welding 6 Advantages and disadvantages of resistance welding 10 Application of resistance welding 11 Conclusion 12 Overview of Resistance Welding Introduction In simplest terms, welding is a process by which two or more pieces of metal are joined by applying heat and pressure. Back in the good old days, blacksmiths and other crafty people would heat metals in a furnace and then weld them by hammering the red-hot metals together. By hammering the metals as they cooled, the weld would be made stronger. This heating-and-hammering method is known as forge welding. While forge welding worked quite well for most of the welding done back then, today's welding requirements are a bit more advanced. After...
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...1 PROFESSIONAL OBJECTIVE ◊ To Associate Myself with a Growth – Oriented Enterprise and Strive to Achieve the Goals of the Organization, Contemplating Sustained Individual Growth Through Diligent Hard Work. 2 CARRIER SUMMARY ✓ HAVING 18 YEARS EXPERIENCE AS WELDER, FABRICATOR AND TECHNICIAN FITTER IN THE FIELD OF BOB SERVICE IN INDIA AND DUBAI EXPERIENCE SUMMARY 3 M/S WEIR ENGINEERING SERVICES COMPANY 4 JEBEL ALI FREEZONE, UAE 5 6 7 Designation: Senior WELDER AND FABRICATOR from April 2013 to Till now 8 The Responsibilities held:- ✓ Involved In Pipe Pressure Welding ✓ Mig welding and machine welding ✓ Stripping and Re-Assembly Choke and Kills manifolds & Standpipe manifolds. ✓ Fabricating the BOP's skid and Choke manifolds skids. ✓ Fabricating the Structural beam & column Pipe. ✓ Duct assembly 2 M/s. R.M.H Fabrications (P) Ltd., (ISO 9001-2000) 3 Thuvakudy, Trichy, Tamilnadu, India 4 5 Designation: Fabricator from AUG’ 2009 to April 2013 Company Profile:- One of the Leading Vendor of Bharat Heavy Electricals Ltd., Trichy, Tamilnadu Product:- Fabrication of Plus & Box type Columns, Horizontal Beams & Boxes, Monorail assy., Buckstay assy. & Bracing assy. The Responsibilities held:- ✓ Fabricator and Production IN-CHARGE ✓ Work Allocation for workers. ✓ Perform Inspection...
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