8/13/2019 Projek Arka 2013

1/9

8/13/2019 Projek Arka 2013

2/9

2.0 OBJECTIVE.

The primary purpose of these workshops is eager to show an improvement in the work

workshop (welding arc).In addition, you want to implement a healthy work practices

workshops, such as practicing good security measures and maintenance of any

equipment in the workshop.:

- Learn how to weld( basic joint ).

- Generating projects such as stop-start run, padding, dan T joint.

-

3.0 INTRODUCTION.

3.1 Arc Welding.

Arc welding is a work shop to be learned and should practice well for every student

because this is one of the basic things in the work workshop.Arc welding is based on

high electricity charges and the use of other tools.

3.2 Basic Joint.

a) stop-start run. a simple welding job but it requires skill in producing this project.In

addition, using only one piece of the work piece and yielded three runs moldings.

b) padding. each run made moldings moldings should overlap the previous one.There

are three layers of moldings run on the workpiece.

c) T joint. just weld beads with a home run only on the workpiece.With the

establishment of a workpiece on the workpiece and weld.

8/13/2019 Projek Arka 2013

3/9

4.0 TOOL EQUIPMENTS.

Tools Equipment. Picture Equipments.

a) Head shield.It is intended to protect or continue to

hit eyes from ultraviolet rays and keepface contact with a spark duringworkshops.

b) Glove.Can hold hot or equipment needs.

c) Wire Brush.To clean crust(jemang) at theworkpiece.

d) Hammer.

e) ApronTo protect our body from sprinklefireworks

8/13/2019 Projek Arka 2013

4/9

5.0 SAFETY PROCEDURES.

Figures.

Arc Welder Safety :

1. Always wear protective clothingsuitable for welding. Wool or cottonclothing, high top leather shoes,gauntlet gloves, welding apron orleathers, and leggings arerecommended. DO NOT wearclothing made of synthetic fiberswhen welding. Some syntheticfibers are highly flammable.

2. Always wear industrial quality eye

protection when welding andcleaning welds. A number 10 filterlens is minimum for most arcwelding processes.

3. Keep the welding area clean andfree of tools, scrap metal, andwater.

4. Make sure the work area is free offlammable, volatile, or explosive

materials. (Ex. propane, gasoline,grease, and coal dust).

5. Do not carry matches, butane orpropane lighters or otherflammables in you pockets whilewelding.

6. Shield others from the light raysproduced by arc welding. Keep thewelding curtain in place at all times.

7. Never weld while standing in wateror on damp ground.

8. Guard against the use of damp orwet clothing when welding. Theuse of such clothing increases thepossibility of electrical shock.

8/13/2019 Projek Arka 2013

5/9

9. Never breath fumes when weldinglead, cadmium, chromium, steel,manganese, brass, bronze,beryllium, zinc, or galvanized steel.These fumes are toxic and may

cause sickness or death. A goodexhaust system is essential whenwelding within a confinedlaboratory.

10. Protect welding cables from sparks,hot metal, open flames, sharpedges, oil, and grease.

11. Never lay the electrode holder onthe welding table or a grounded

metal surface. Place it on aninsulated hanger. An electrodeholder should never touch acompressed gas cylinder.

12. Place electrode stubs in a suitablecontainer. Do not allow stubs to geton the floor in the welding area.

13. Use tongs or pliers to handle hotmetal after it has been welded.

Completely submerge metal inwater when cooling, this preventssteam from burning you.

8/13/2019 Projek Arka 2013

6/9

6.0 PROCEDURES.

- stop-start joint.

- padding.

- T joint.

Procedures. Figures.

1) Turn on the machine arc. Then puton the surface of the work piece forwelding niche.

2) Install rod electrodes at charge.

3) Stand in a comfortable position andperfect, then point the rod electrode

on the workpiece.

4) Start welding with the first run ofmoldings 1/2 length of theworkpiece, then pause and resumeuntil the end of the workpiece.

5) Make a second and third runmoldings in the same way.

b) Padding.

1) Make the first notch running downthe length of the work piece, as wellas clean crusts found on theworkpiece. then run moldings andthe next second half of the raceshould overlap the previousmoldings.

8/13/2019 Projek Arka 2013

7/9

Procedures. Figures.

2) Then do a broad moldings runagain from the edge of the work

piece and clean crust available todo the work piece and the secondrun and the next moldings withmolding overlap on the previous runup to half the surface of the former.

3) After completion the weld for thefirst and second surface, the thirdsurface weldbe above the surfaceof a second earlier. Perform run-offnotch original lengthwise so that the

second half of the surface.

c) T joint.

1) Using the two metal plates of iron,place like the letter "T", then doyour nails welded on both sides of

the sheet metal upright.

2) Make sure there is no air space onboth parts to be joined (welded).

3) Then weld the parts to be joined.

4) Finally clean the all crust availableon workpiece.

8/13/2019 Projek Arka 2013

8/9

7.0 CONCLUSION.

In conclusion, all the work done in this project has achieved all its objectives.I was able

to learn the ways of welding (basic joint) with good shape, work practices workshops

with more perfect in this laboratory.

8.0 REFERENCES.

-Arc Welding - Welding Resources and Tips (www.weldmyworld.com)

-kimpalanarka start-stop joint - Google Search (www.google.com.my)

-Books-Mechanical workshop

http://www.weldmyworld.com/http://www.weldmyworld.com/http://www.weldmyworld.com/http://www.google.com.my/http://www.google.com.my/http://www.google.com.my/http://www.google.com.my/http://www.weldmyworld.com/

8/13/2019 Projek Arka 2013

9/9

Stop-start joint.

Padding and T joint.