tag:blogger.com,1999:blog-48856811134275794182024-02-18T19:41:20.255-08:00Welding and FabricationWelding and Fabricationhttp://www.blogger.com/profile/11434276271068496323noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-4885681113427579418.post-17325224621268997282014-06-11T08:26:00.000-07:002015-05-04T06:44:30.771-07:00Mold Welding and Custom Metal Fabrication<h3>
<span style="font-size: small;">Metal Stamping dies break and crack. <div style="text-align: right;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh6WNemtBH-Vlp32n0bEqyFxI3VFbOLNGzzzawRV0TsLaW1pHzUKlUBxyPAsx6SxJcj9C9D7cP2pHLBZ8xShK5HxOIahpwiCGkTdJEunx0IqIFWff2vPakKbA1tzREQfLiuV1_oX5MWaFui/s1600/laser_brass.jpg" imageanchor="1" style="clear: right; float: right; margin-bottom: 1em; margin-left: 1em;"><img alt="Laser Welding Services and Custom Fabrication Michigan" border="0" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh6WNemtBH-Vlp32n0bEqyFxI3VFbOLNGzzzawRV0TsLaW1pHzUKlUBxyPAsx6SxJcj9C9D7cP2pHLBZ8xShK5HxOIahpwiCGkTdJEunx0IqIFWff2vPakKbA1tzREQfLiuV1_oX5MWaFui/s1600/laser_brass.jpg" title="Laser welding uses minimum heat input and causes minimal distortion" width="211" /></a></div>
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That’s the nature of the beast. A tool that stamps out an entire door panel is going to need to be maintained and repaired.<br />
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<span style="font-size: small;">Engineering changes happen.</span></h3>
A tool die or interior panel mold needing changes after manufacturing has begun is more common than most manufacturers would like, but <b>laser welding</b> can be a good solution to a costly problem. And it’s almost always cheaper to have those changes done with Accurate Welding than designing and fabricating a new <a href="http://accuratewelding.us/welding/mold-and-die-laser-welding-repair" target="_blank"><b>mold or die</b></a>.<br />
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But not every welding shop is capable of doing the kind of welding needed to make engineering changes or tool and die repairs. And most don’t have the kind of equipment or experienced <b>laser welders</b> to do the jobs right.<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiELMCgQB9x57hj2Urg4b8uK0EooV1v7_1KWvOdjECMyBhpsOgUMmY-P7yTPTSw72wk1NWBAAzMPDoEefyl4nOvp8c5UHXU7cepbZjiABgzMJ_gB446CWFE8AqHTCVrS0nvri3l_lO_DcAD/s1600/laser_weld_bond_tool.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img alt="Custom Metal Fabrication and Laser Welding Michigan " border="0" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiELMCgQB9x57hj2Urg4b8uK0EooV1v7_1KWvOdjECMyBhpsOgUMmY-P7yTPTSw72wk1NWBAAzMPDoEefyl4nOvp8c5UHXU7cepbZjiABgzMJ_gB446CWFE8AqHTCVrS0nvri3l_lO_DcAD/s1600/laser_weld_bond_tool.jpg" title="Laser welding scribe lines and cutter violations on tools big and small!" width="317" /></a></div>
<b>Laser welding</b> can make repairs and changes on tools large and small. It uses very little heat relative to traditional <b>welding </b>and leaves little or no distortion.<br />
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Compared to gas metal arc <b>welding</b>, <b>laser welding</b> is faster, has a much lower distortion rate, and only requires a single pass for two-sided welding. When you pair <b>laser welding</b> up against resistance welding you get less debris buildup, better reach into inaccessible areas and a faster job times.<br />
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It’s this level of speed and precision that you get when you send your molds and dies in for <b>laser welding services</b> at Accurate Welding. With four <b>laser welding</b> stations, plus an experienced and certified team of <b>laser welders</b>, we can get dozens of welding die changes or <b><a href="http://accuratewelding.us/" target="_blank">mold welding</a> </b>repairs done very fast, even up against some of the most time-critical deadlines. <br />
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Check out our <b>laser welding</b> <a href="http://www.youtube.com/channel/UCvv_d07vNjsg_lHJkWLAIDw">videos</a> and see firsthand how efficient and accurate our mold and die <b>laser welding</b> process is.<br />
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<a href="http://accuratewelding.us/contact">Contact us</a> today and we’ll answer your questions and help you find the ideal solution for your welding needs! Welding and Fabricationhttp://www.blogger.com/profile/11434276271068496323noreply@blogger.com12tag:blogger.com,1999:blog-4885681113427579418.post-889586379640656022014-06-11T06:07:00.000-07:002015-05-04T06:53:55.369-07:00Color Match Welding & Choosing the Laser Welding Services for your Molds & Dies<span style="font-size: large;">Many Reasons for Repair But Only One Thing Matters to Manufacturers</span><br />
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There are many reasons molds and dies need to be <b>welded</b>—like any industrial machine part they can get cracked, chipped, or broken. But most of the time we are called in to weld molds and dies that need engineering changes that have been made late in the product development process and so where repairing with <a href="http://accuratewelding.us/" target="_blank"><b>laser welding</b></a> to match the engineering change is less expensive than manufacturing a new one. <br />
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No matter the reason the <b>welding repair</b> or change needs to be done, one constant remains — the manufacturer does not want to see a weld line showing in the finished part. This is particularly true when there is a uniform surface texture such as a grain pattern.<br />
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To prevent <b>welded repairs</b> or changes from showing up on the part, the <b>mold</b> requires a welding process that uses <a href="http://accuratewelding.us/welding/mold-repair-welding-and-color-matching" target="_blank"><b>color match welding</b></a>. The term <b>color match welding </b>describes a <a href="http://accuratewelding.us/heat-treating" target="_blank">heat treating</a> procedure by which the base material, HAZ (heat affected zone), and the weld deposit regions in the cavity of <b>welded mold</b> steel are processed to achieve perfectly uniform weld-grain-structure for texturing and/or diamond polishing. To restore a welded cavity surface to pre-weld consistency prior to acid etching or diamond polishing, the metal must be re-tempered to remove any hardness variations and grain growth created by the weld arc streams. <br />
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<span style="font-size: large;">There are no shortcuts to proper <b>color match welding</b>. </span><br />
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Experience plays a very large role in performing it successfully. Because of that it’s really more of an art than a science and not every <b><a href="http://accuratewelding.us/" target="_blank">mold welding</a></b> shop can deliver a great finished product.<br />
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Back in 1975 color match <a href="http://accuratewelding.us/" target="_blank"><b>welding and fabrication</b></a> was being done with welding torches, which was basically the technology of the time. It didn’t take long to figure out that you couldn’t eyeball 32 Rc, so applying MIG and TIG welding as well as developing your own heat treat department with controlled-atmosphere furnaces was necessary.<br />
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<span style="font-size: large;">Doing it right means investing in the right equipment.</span><br />
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Today’s mold repair and<b> fabrication</b> houses should have a number of on-site furnaces to accommodate any size job as well as provide effective stress relieving and normalizing of P20, S7, H13, A2, and D2 tool steels. <br />
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When “preheats” and “postheats” are not properly taken care with the correct equipment the result will be inconsistent and non-uniform hardness and a non-uniform surface. This means the tool is in jeopardy of cracking.<br />
<span style="font-size: large;"><br />Ever try to bake a cake with no oven door?</span><br />
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Even today, many mold manufacturers don't have any means of heating tools other than a torch, which simply doesn’t work because there is no way of controlling atmosphere and temperature. It’s like baking with the oven door open — there’s no way you’re going to get a decent result. It’s critical that there is uniform heat through the whole piece.<br />
<span style="font-size: large;"><br />Making new welds “hard as steel” takes hard work. </span><br />
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Typically customers ask that the modified or <a href="http://accuratewelding.us/welding/mold-repair-welding-and-color-matching" target="_blank"><b>repaired mold</b></a> area have a hardness of 32-36 Rc . The mold material first needs to be analyzed to determine the proper electrode size and filler metal to match the tool steel composition, so the specific heat treatment method can be determined. Qualifying hardness of the steel determines the materials to be used as well as the tempering curves to be used with the materials that are being welded.<br />
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In the process, it is not always necessary for the filler metal used to perfectly match the composition of the tool steel being welded. However, the material should be as close as possible, otherwise you will get a difference in chemistry and heat treatment will not be able to correct it. <br />
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Because manufacturers of filler materials today have such a wide array of alloys--with well defined properties and specifications as they relate to the weld deposit— it has become much easier to identify the appropriate material to use. The welding technician typically works with the steel manufacturers and steel suppliers to target the correct filler alloys and make sure they are compatible. If it’s P20, you must make sure you use P20.<br />
<span style="font-size: large;"><br />It takes skill and a little artistry too.</span><br />
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Typically the 'to be' modified or <a href="http://accuratewelding.us/" target="_blank"><b>repaired mold</b></a> area is rough ground to provide a uniform depth for the weld deposit. It takes very skilled <b>welding </b>technicians to work with these types of weld filler materials and evenly apply the right amount of weld build-up to ensure that the final dimensions can be produced. Strict adherence to AWS standards and requirements should be maintained.<br />
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After the weld material has been applied, the weld deposit areas are annealed to make sure that the area has a uniform hardness of approximately 44-48 Rc . This allows for re-tempering with draw temperatures of 1100 to 1125 ℉ to get down to 32-36 Rc if the weld area is going to be machined or acid etched. For every 25 degrees of heat, there is a corresponding 1 pt. of hardness.<br />
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The end product is a <b>mold or die</b> that comes out of the furnace looking like new. No other result counts. “Close Enough” is not acceptable in <b>color match welding</b>.<br />
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<b><span style="font-size: 14px;">Need <a href="http://accuratewelding.us/" target="_blank">custom metal fabrication in Michigan</a> done fast and right? Call us 586.465.5033.</span></b><br />
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