Saturday, July 25, 2009

Choosing Auto-Darkening Helmet

Here are some tips how to choose welding helmet. This is important, you always need to make sure that the welding helmet meets safety standards. Better helmets have adjustment for shade, delay and sensitivity. These adjustments are important for different types of welding. For low-amperage TIG welding you should use longer delay. Large view is always nice for comfort. sturdy frame is also nice, especially when welding all day long in extreme conditions.

Here is my favourite welding helmets:

Pro series:
  • Miller Elite
  • Kemppi Beta 90
Hobby series:

  • Shine AS-2000F
  • Eyerex EF106-1 3/11 (with this, you can make your non-automatic welding helmet automatic)


Wednesday, July 22, 2009

How ball bearings are made?

Saturday, July 18, 2009

Productivity and profitability with Elga

Elga is one of the biggest operators in the European welding business for
consumables.



Cored wires experienced a real breakthrough in the 80´s and rapidly gained in
popularity. The objective was to weld more efficiently, compared to the coated
electrode.

Since then a great deal of research and development has been invested in the areas
of arc characteristics, operability and mechanical properties. The result is that
today welding with cored wires offers a whole range of advantages compared to
both stick electrodes and solid wire. The key word is productivity, achieved by
the twin advantages of higher deposition rate and increased arc time factor.

In addition, Elga cored wires also help reduce interuptions to production caused
by wire feed problems and the need to change wear parts such as contact tips,
gas nozzles and liners. Compared with other processes post-weld dressing, e.g.
spatter removal, can also be minimised.

In short, the use of cored wires reduces total labour costs – the prime objective.
Initially cored wires were only suitable for thicker materials and had limited
positionality. Today fully positional welding in material thicknesses down to
2-3 mm presents no problems, thanks to continuous product development in
cooperation with end users.

Elga flux cored wires

The distinguishing feature of flux cored wires is that they form a slag which can
support the weld pool and thereby provide positional welding characteristics.
There are both rutile and basic flux cored wires but the rutile type dominates on
the market due to superior operability.

Elga rutile wires provide very good operability in all positions. The low alloyed
range offers excellent fracture toughness at temperatures down to -60°C, both in
the as-welded and stress relieved condition. Common to the complete Elgacore
programme is a deposited metal hydrogen level below 5ml/100g.

All Elga rutile wires produce high quality root beads on ceramic backing.
Basic flux cored wires are not used to any great extent due to their comparatively
limited welding characteristics and consequent lack of welder friendliness.
Within these limitations however basic wires offer good low temperature fracture
toughness and good crack resistance under conditions of high restraint, e.g. fillet
welds in thick material.

Elga metal cored wires

Metal cored wires contain little or no flux and so produce only a very small
amount of slag, similar to that from a solid wire. The core is composed mainly
of metal powder which in turn contributes to increased productivity. The deposition
efficiency is 96%, against 86% for a rutile flux cored wire, resulting in a
higher deposition rate.

Metal cored wires give very good penetration, similar to solid wire, but with the
added advantage of a wider penetration profile. The combination of these two
factors reduces the risk of lack of fusion and root defects. Today´s wires can be
used for plate thicknesses down to 2-3 mm and, together with the advantages
previously mentioned, has led to them replacing solid wire in many applications.
Metal cored wires permit a significantly higher travel speed, minimal spatter
and less stop/start problems.

This wire type has limited positional operability since it lacks a supporting
slag. In the spray transfer mode the wire is suitable for applications in the flat
and horizontal positions. In the short arc mode it can also be used vertically up,
which is a widely used method for the root bead in single sided welding without
ceramic backing.

Metal cored wires are used extensively in mechanised and robotic applications
but recent years have also seen their increasing use for manual welding, as an
alternative to both solid and rutile flux cored wires.

Elga - For improved profitability
Problem-free production with Elga cored wires

· Exceptionally good wire feeding due to extremely clean surface
· Reliable batch-to-batch consistency
· Weld with a stable, smooth arc
· Negligible spatter = little or no post- weld dressing
· High deposition rates
· Comprehensive range


Tuesday, July 14, 2009

Welding safety

here is some safety pointers for safe weldig:

1.Use protective equipement: gloves, helmet, hearing protectors, protective clothing and footwear. These are personal: no sharing with buddy's!!!

2. Keep the current and ground cable together to avoid the generation of magnetic fields.
This reduces the exposure of the user to magnetic fields.

3. Fire safety: gasoline spills, some welding sparks.. you get the idea..

4. Welding splatters. See number one.

5. Welding power circuit: dry clothes are your best friends and do not weld in wet surface.

6. Welding fumes are dangerous so use fresh-air masks. Cancer is not cool.

Sunday, July 12, 2009

Fein Multimaster

Here is a link to Fein Multimaster video

Friday, July 10, 2009

Ingersoll Rand 2125XP

IR has released new 1/2" premium composite air Impactool. Only 1.14Kg.... Here is link to the 2125XP

Tuesday, July 7, 2009

New Polarion Abyss U2 divelight

Have some pictures of the new Polarion Abyss U2 divelight:




Abyss Specifications:

  • Model: Polarion Abyss U2

  • Lamp type: HID Mplx 35w

  • Lamp Power: 35W ~ 40W

  • Max. Luminous Flux: 3400lm(35w) - 4000lm(40w)

  • Lamp Life: Up to 2500hrs

  • Color Temperature: 4300K / 5500K

  • Illumination Distance: Up to 1.2km (Ground)

  • Input Voltage: DC 12V~18V

  • Operational Current: 4.0A

  • Weight(with battery): 1.9Kg(Ground), 500g(Underwater)

  • Dimensions(mm): 92(W) x 255(L) x 135(H)

  • Water Resistance: IP68(30m)

  • Battery Type: Li-ion Rechargeable, Cartridge type

  • Battery Capacity: DC 14.4V 4,400mAh

  • Run Time: 70min(40w) - 90min(35w)

  • Weight: 0.5kg

  • Input Voltage: AC 100~240V 50~60Hz

  • Output Voltage: DC 19V

  • Charge Time: 3 hrs ± 30 min






Sunday, July 5, 2009

Kemppi Fitweld

We have tried this new weldingmachine and we like it wery much. A small in size but it has lots of welding power. This machine has some cool features:

- GasGuard: it prevents welding if shielding gas is cut
- QuickArc: faster ignition so splatter is minimal

We even weld without a shielding gas!!!! ...But we used SELF-SHIELDED FLUX-CORED WIRE... ;-D


Here you can view some images of the Kemppi Fitweld 300, (you need a Microsoft Silverlight plugin, drag and zoom with your mouse)



Here is a video:



Technical data:


  • Mains voltage: 3 ~, 50/60 Hz 400 V -15% +10%

  • Rated power max. 11,0kVA

  • Load capacity 40 °C 300 A / 20%

  • Connection cable / fuse delayed 4G1,5 (5m) / 10A

  • Open circuit voltage 43 V

  • Power ratio at maximum current 0,95

  • Efficiency at maximum current 0,85

  • Welding range 11- 32 V

  • Spool, max. ø 200 mm

  • Feeding mechanism 2-roll feed

  • Filler wires Fe solid 0,8 - 1,2 mm

  • Fe cored 0,8 - 1,2 mm

  • Ss 0,8 - 1,2 mm

  • Al 1,0 - 1,2 mm

  • External dimensions L x W x H 457 x 226 x 339 mm

  • Weight 14,5 kg

Milwaukee C 12 PC

Milwaukee C 12 PC is cool tool from Milwaukee.

Friday, July 3, 2009

How to weld thin metal?

Here is video for thin metal technique. Here is the link

Learning MIG Welding

Here is a tutorial for MIG-welding.

Setting wire feed speed

Here is tutorial fo setting Wire speed on a MIG welder.

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What is TIG Welding?

TIG (Tungsten Inert Gas), a video from Miller.

Miller welding: improving your skills

Here is link to Miller's web site. Here you can find some tips for MIG-welding.

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Thursday, July 2, 2009

Learn how to tig weld better & faster - by learning how to feed that tig rod

Nice little video on how to feed tig rod. Here is thelink

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Wednesday, July 1, 2009

When to choose coated electrodes?

1. MIG, MAG, TIG-welding requires the working
site to be protected from the wind.

2. With coated electrodes and a small inverter
it’s easier to weld in small spaces.

3. Large and complicated welding machines
are hard to handle. The light and simple equipment is portable and easy to move between different work places.

Plasma or Oxyfuel?

Here is link to Hypertherm's website. There you can find information and videos about choosing between Plasma or Oxyfuel.

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Hand Arm Vibration and power tools

Here is interesting article by Milwaukee Electric Tool:

"Hand Arm Vibration is vibration which is transmitted from a variety of work processes into workers’ hands and arms. It can be caused by operating hand-held power tools, such as breakers, chipping hammers or angle grinders. Vibration can present a health and safety risk to workers who regularly operate high-vibration tools."

Here is link to
Milwaukee Electric Tool's webpage about Hand Arm Vibration.

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Reason why choose Elga Optimator?

Simple answer: Money!! Optimator produces optimal and controlled shielding gas flow from the start. Traditional regulator will not control the initial flow surge, which is very expensive waste.


Here is video link how to Weld your way to riches!

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