KwikWeld microwelders for microwelding injection molds and die cast dies.

<body> <h1 align="center">KwikWeld Microwelders utilizes low heat welds</h1> <h1 align="center"> for plastic injection mold repair (plastic injection mould repair).</h1> <h3> <font face="Arial" size="3"> Resistance microwelding for mold repair takes another step forward with the ability to combine both a C.D. (capacitance discharge) and A.C. resistance microwelders into one portable unit. The KwikWeld by MicroWeld Technologies, Inc. has made available to plastic injection mold repair non-professionals the expanded power capabilities previously only available by owning two separate microwelders. Portability combined with expanded power capabilities allows many plastic injection mold repairs such as parting lines, edges, corners, gates and vents to performed without pulling the mold. This saves not only plastic injection mold repair costs but also down time for pulling the plastic injection mold out of production. The C.D. microwelder is recognized as the mainstay for doing fine precision microwelding particularly on delicate edges and corners but was limited to only this fine microwelding because of its limited power capabilities. Whereas the A.C. microwelder produces much more power and has deeper weld penetration especially useful for multiple layer applications. Both modes of welding employ the resistance microwelding principle which bonds welding material (ribbon wire or powder) to the work piece with minimal heat to avoid shrink lines and distortion. No preheat or post heat treatment is necessary. Controlled by an Intel™ microprocessor the welding operation is simple to operate even for even for individuals with little or no welding experience.</font></h3> <h3 align="center"> <font face="Arial"><a href="roll.html">Ribbon Welding</a></font></h3> <h3 align="left"> <font face="Arial" size="3">Roll welding is a microwelding technique used to weld ribbon material to the work piece to repair such areas as parting lines, edge and corner repairs as well as scratches and pin holes in plastic injection mold repair. Ribbon material is specifically designed for microwelding and is similar to shim stock except it is available in mold and die steels such as H-13, P-20, S-7, A-2 and stainless steel. The repair material is positioned over the damaged area of the plastic injection mold, in the case of parting lines and other edge repair, it is common to let a portion of the repair material to extend past the edge slightly. The repair material is microwelded by pressing down on top of the ribbon material with the tip of the silver-tungsten electrode. The footswitch is then depressed, producing a weld. This will permanently resistance weld or spot weld that portion of the repair material to the repair piece, which is directly under the electrode. Continuous microwelds are accomplished by holding down on the footswitch while simultaneously rolling the tip of the electrode along the repair material<a href="movie.html"> (see video)</a>. The goal is to roll at such a rate so the microwelds will actually overlap each other without leaving any voids between the welds. The side of the electrode is used to form this material over the edge and weld it to the perpendicular face of the edge. This forms a complete <i>cap</i> over the damaged edge of the plastic injection mold when the repair material is completely microwelded in place. It is then possible to either finish the area off using traditional mold polishing practices or microweld another layer of repair material if it is necessary.</font></h3> <h3 align="center"> <a href="wire.html"><font size="4" face="Arial">Wire Welding</font></a></h3> <h3><span style="font-size:13.5pt;mso-bidi-font-family:Arial"><font face="Arial">The appropriate size microwelding wire is selected to fill the scratch in the </font></span> <font face="Arial" size="3">plastic injection mold</font><span style="font-size:13.5pt;mso-bidi-font-family:Arial"><font face="Arial"> surface.  It is very difficult to use the rolling technique on wire because of the tendency for the electrode to slip of off the repair material.  A better method of microwelding wire is to file small "flat" on the radius of the E332R electrode.  Rather than rolling the electrode, slide the electrode to a new position after each micro weld. If model KWX2 is being used, it is best to set the weld speed at <b><i>Manual, </i></b>with Model KWac set the weld speed at it's lowest setting.<o:p>   <o:p></o:p> </font></span></h3> <h3><span style="font-size:13.5pt;mso-bidi-font-family:Arial"><font face="Arial">The cross sectional picture shows the wire filler material positioned over a scratch in the molds surface.  After the microwelding process (as shown above) the second cross section shows how the repair material has flowed into the scratch, filling the void.  The repair material is permanently bonded to the mold during the microwelding process.  The next step would be to remove the excess repair material using standard finishing techniques.  Generally there is less excess repair material using the KwikWeld Microwelder so the finishing process is also simplified.</font></span></h3> <h3 align="center"> <a href="powderweld.html"><font size="4" face="Arial">Powder Welding</font></a></h3> <h3><font size="3">Powder welding is the true micro part of microwelding.  It is used to repair very fine areas during</font> <font face="Arial" size="3">plastic injection mold repair.  Welding can be done under magnification to accomplish minute welds plastic injection mold repair areas that are too fine to see well with the naked eye.  The following are the basic steps used in plastic injection mold repair with powder:</font></h3> <ul> <li> <h3><font face="Arial" size="3">The KwikWeld Microwelder Model KWX2 is set in the C.D. mode.</font></h3> </li> <li> <h3><font face="Arial" size="3">Powdered metal is positioned over the damaged area using the magnetic probe.</font></h3> </li> <li> <h3><font face="Arial" size="3">The tip of the silver tungsten electrode is pressed down on the powdered metal, trapping a small amount of repair material between itself and the damaged area.</font></h3> </li> <li> <h3><font face="Arial" size="3">Repeat this process until sufficient material has been welded in the damaged area.</font></h3> </li> <li> <h3><font face="Arial" size="3">Remove the excess powdered welding material from the work area using the magnetic probe.</font></h3> </li> <li> <h3><font face="Arial" size="3">Go back over the repaired area with the electrode using the roll weld process to complete the microweld and smooth the area.</font></h3> </li> <li> <h3><font face="Arial" size="3">Lap and polish the repair area to complete the job.</font></h3> </li> </ul> <p align="left"> <font face="Verdana, Arial, Helvetica, sans-serif" size="1"><a href="page1.html" target="main"><b>Home</b></a><b> / </b><a HREF="movie.html" TARGET="main">Movie</a> / <a HREF="roll.html" TARGET="main">Roll Welding</a> / <a HREF="wire.html" TARGET="main">Wire Welding</a> / <a HREF="powderweld.html" TARGET="main">Powder Welding</a> / <a HREF="repairmaterial.html" TARGET="main">Repair Material</a> / <a HREF="electrodes.html" TARGET="main">Electrodes</a> / <a HREF="specs.html" TARGET="main">Specifications</a> / <a HREF="faq.html" TARGET="main">FAQ</a> / <a HREF="kwpricesheet.html" TARGET="main">Price Sheet</a> / <a HREF="germindex.html" TARGET="main">Deutsch</a> / <a HREF="span.html" TARGET="main">Español</a> / <a HREF="email.html" TARGET="main">Contact Us</a></font><h3>   <a href="menu.html">Contents</a> </body>