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18.03.2010. Virovitica Copyright, 2002 Hypertherm, Inc. These materials cannot be reproduced in any form without the permission of Hypertherm, Inc. •Distributor logo
18.03.2010.Virovitica
Copyright, 2002 Hypertherm, Inc. These materials cannot be reproduced in any formwithout the permission of Hypertherm, Inc.
•Distributor logo
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About HyperthermAbout Hypertherm
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About HyperthermAbout Hypertherm
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Today, Hypertherm, Inc. remains located in Hanover, New Hampshire and now occupies this 12,541 m2 facility.
Hypertherm TodayHypertherm Today
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The first three states of matter are solid, liquid, and gas. For the most commonly known substance, H2O (water), these states are ice, water, and steam.
States of MatterStates of Matter
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But the often overlooked “fourth state of matter” is called PLASMA. The addition of sufficient heat energy causes the gas to be ionized.This ionized gas with its current carrying properties is the fundamental basis onwhich all plasma systems operate.
The Fourth State of MatterThe Fourth State of Matter
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What is hot?
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How else can you make motion?
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From gas to plasma
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Free electrons
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Free ions
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From gas to plasma
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From gas to plasma
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What is plasma?
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Plasma in NaturePlasma in Nature
One example of plasma, as seen in nature, is lightning. The lightning moves electricity from one place to another using air as the ionization gas.
– Sun– Stars– Northern Lights– Lightning
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What Is Plasma What Is Plasma Cutting?Cutting?
Definition:
A high speed process utilizing an accurately controlled electric arc for cutting most common metals. Plasma arc cutting systems provide:– High cutting speeds– High productivity– Cost-effective operation– Process flexibility on a variety of metal types
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Requirements for a PlasmaRequirements for a Plasma
3 Things Needed to Create a Plasma:
Plasma Requirements Plasma Arc Cutting
Process Gas O2, Air, N2, etc.
Energy Source DC power supply
Starting Method High frequency, contact start, etc.
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How does pHow does plasmalasma cut metal ? cut metal ?
•The heat of the arc melts or vaporizes the metal•Gas flow pushes that material away
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How the plasma is shaped
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Supports a current
Torch & Consumable Technology
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Plasma TorchPlasma Torch
The torch main body (torch-head) holds the consumable parts in near perfect alignment:
• Electrode• Swirl Ring• Nozzle• Retaining Cap• Shield Cap
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Consumables - ElectrodeConsumables - Electrode
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The electrode carries the negative charge from the power supply. Copper holder with small insert of hafnium or tungsten.
• Hafnium for Air and Oxygen plasma gases.
• Tungsten for Nitrogen or Argon Hydrogen plasma gases.
Consumables - ElectrodeConsumables - Electrode
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Patented hafnium-sizing technology significantly increases electrode life.
Consumables - ElectrodeConsumables - Electrode
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Electrode afternormal use
Consumables - ElectrodeConsumables - Electrode
Electrode afterexcessive use
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Consumables - NozzleConsumables - Nozzle
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• The nozzle constricts and focuses the plasma jet.
• The size of the nozzle orifice is directly related to amperage: the higher the amperage, the larger the orifice needs to be.
Consumables - NozzleConsumables - Nozzle
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Consumables - NozzleConsumables - Nozzle
normal ovaling
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Consumables – Swirl RingConsumables – Swirl Ring
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Consumables – Swirl RingConsumables – Swirl Ring
• The Swirl Ring has small holes in it to meter the flow of gas into the plasma chamber.
• These holes spin the plasma gas into a swirling vortex that helps to center and constrict the arc.
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Consumables – Retaining CapConsumables – Retaining Cap
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Consumables – Retaining CapConsumables – Retaining Cap
• The Retaining Cap, together with the swirl ring, is used to hold the electrode and nozzle in alignment. It also protects the operator from the voltage potential between the electrode and nozzle.
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Consumables – Shield CapConsumables – Shield Cap
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• Shields and shield caps are designed to protect the torch and nozzle from molten spatter and radiant heat.
• Shields also channel the flow of secondary gas or water.
• Electrically isolated allowing torch to touch work piece.
Consumables – Shield CapConsumables – Shield Cap
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• Select consumable parts using the appropriate cut charts. • Install consumables in the proper order.
DO NOT OVERTIGHTEN!• Electrodes and Nozzles should be replaced as a set. • Swirl rings should be replaced when necessary, usually
about every 20 electrode/nozzle changes. • Shields, retaining caps, etc. only need replacing when
they are physically worn or cut quality becomes poor.
Installing ConsumablesInstalling Consumables
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hammer
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MC Hammer
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NOT a hammer!
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Innovative Plasma Cutting Technology
• Coaxial-assist™ jet
• No High Frequency. HyLife™ Electrode (hafnium sizing)
• Dual-threshold™ pilot circuit.
• Narrow profile nozzle shield.
•Drag cutting.
•Template tracing.
• ETR™ (Easy Torch Removal) system.
Why Hypertherm?Why Hypertherm?
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Other notable featuresOther notable features
• Safety Trigger• Full one year warranty on torch.• Three year on system.• Auto voltage (G3 systems only)• On board CNC interface (G3
systems only)• Gouging option.• Easy cutting in grating and
expanded metal.
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Cutting speedCutting speed
Coaxial-Assist Jet technology
355
558
Powermax1000 Powermax900
Cutting speed: 60A 19mm carbon steel
mm / min.
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355330
279254
558Max cutting speed for carbon steel (19 mm)
Who will finish the job first ?
Cutting speedCutting speed
mm / min.
Competitor 1Powermax1000® Competitor 2 Competitor 4Competitor 3
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Consumables life timeConsumables life time
363
971
Powermax1000 Powermax900
Number of cuts 305 mmfor carbon steel 12 mm
Number of cuts
Dual-Threshold Pilot
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Consumables life timeConsumables life time
490
198111
47
971
Number of cuts
Competitor 1Powermax1000® Competitor 4Competitor 3Competitor 2
Who will cut more with one set of consumables ?
Numbers of cuts 305 mm for carbon steel 12 mm
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Product lineProduct line
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Why Plasma?Why Plasma?
The plasma cutting process can:- Cut any metal- Cut metal with little or no warpage- Cut metal with little or no clean up- Cut much faster than other methods- Replace many other tools- Gouge any metal- Be used on most track-burners, shape cutters, etc.- Operate in the field
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Why Not Plasma?Why Not Plasma?
The plasma cutting process can’t:- Cut a perfectly square edge under all conditions- Cut thick mild steel economically- Be used in flammable areas- Operate without power or air supply- Cut with extreme precision- Cut very small holes well- Cut non-metals- Operate in the rain
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Plasma Cutting vs. Oxy-FuelPlasma Cutting vs. Oxy-Fuel
Benefits- Plasma can cut non-ferrous materials- Faster cut speeds for higher productivity- Minimal secondary operation required- Lower operating costs- Significantly smaller heat affected zone- Virtually no warpage- Plasma can cut painted, rusted or dirty materials- Safer process than oxy-fuel; no flammable gases
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Speed CapabilitiesSpeed Capabilities
Cut Performance – mm/min
System 3 mm 6 mm 10 mm 12 mm 16 mm 20 mm 25 mm 30 mm
Oxy. cutting 685 660 584 508 457 432 355 330
Powermax190c 559 229
Powermax380 1448 813 432 178
Powermax600 4826 1651 864 610 330
Powermax1000 6706 3353 1600 1067 787 559 305 152
Powermax1250 10973 4089 2388 1524 1016 787 406 203
Powermax1650 11582 5283 3023 2235 1549 1194 711 483
MAX200 3429 2540 2032 1524 1143 635 381
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Alternative ApplicationsAlternative Applications
Beyond Hand Cutting- Pipe beveling- Track burning- CNC applications
