Grinding Disc<\/strong><\/h3>\n\n\n\nGrinding discs is another consideration when you are working with a sensitive metal like aluminum. If you use the same grinding disc on aluminum that you use to weld steel, you will run into several problems.<\/p>\n\n\n\n
First, the metal is softer and melts at much lower temperatures than steel.<\/strong> So, using the same disc that you use for steel will hamper your welding. Plus, the melted aluminum would also gum up the disc, which would result in destroying your tools.<\/p>\n\n\n\nAnd secondly, when you use the same disc you previously used on steel, it will contaminate the sensitive aluminum. <\/strong>So, you should be careful not to keep your aluminum welding tools separate.<\/p>\n\n\n\nLastly, aluminum doesn’t give off a shower of sparks like steel when you grind it<\/strong>. So, if you are more used to welding steel, you might not clearly understand how much you are grinding down on the aluminum. The solution here is to continue working on the metal and gain experience.<\/p>\n\n\n\nWhen working with aluminum, the grinding disc should be made from a similar soft metal. For example, brass, copper, or aluminum.<\/p>\n\n\n\n
Common Aluminum Welding Techniques<\/strong><\/h2>\n\n\n\nSo far, you’ve learned about the causes of difficulty in welding aluminum and how to prepare the metal to deal with them. Now let’s have a look at some of the welding techniques professionals use to get the best results from their work.<\/p>\n\n\n\n
Most welders use the weaving technique when working with steel. But as aluminum has more thermal conductivity, this technique is not best for the metal.<\/p>\n\n\n\n
Instead, use the stringer bead technique. This will result in proper heat penetration and subsequent fusion.<\/p>\n\n\n\n
When welding aluminum, you will want to use a “push” technique. This helps to reduce the gas absorption and resulting porosity.<\/p>\n\n\n\n
The welder uses a “pull” technique to achieve a more pleasant and aesthetic exterior to the weld. But in the case of aluminum, this will result in the entrapment of impurities in the material.<\/p>\n\n\n\n
The visual indicators used in aluminum welding are not adequate to aid in the process. So, to amplify whatever visual cues are present, you need to wear a helmet with a high-quality lens.<\/p>\n\n\n\n
On the other hand, using a blurry or worn-out lens will make your work more difficult than it already is.<\/p>\n\n\n\n
Conclusion<\/strong><\/h2>\n\n\n\nHopefully, the above discussion provides some solution to the query: why is aluminum hard to weld? <\/strong>Always thoroughly clean the metal before you start working. Keep your aluminum welding tools separate from the other machines. And lastly, be sure to use good-quality personal gear.<\/p>\n","protected":false},"excerpt":{"rendered":"Aluminum is a metal that is suitable for a wide variety of projects. It looks great and is very resistant to natural impacts. And the nicest thing about it is<\/p>\n","protected":false},"author":1,"featured_media":872,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[4],"tags":[],"aioseo_notices":[],"acf":[],"_links":{"self":[{"href":"https:\/\/welderacademy.com\/wp-json\/wp\/v2\/posts\/868"}],"collection":[{"href":"https:\/\/welderacademy.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/welderacademy.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/welderacademy.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/welderacademy.com\/wp-json\/wp\/v2\/comments?post=868"}],"version-history":[{"count":5,"href":"https:\/\/welderacademy.com\/wp-json\/wp\/v2\/posts\/868\/revisions"}],"predecessor-version":[{"id":876,"href":"https:\/\/welderacademy.com\/wp-json\/wp\/v2\/posts\/868\/revisions\/876"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/welderacademy.com\/wp-json\/wp\/v2\/media\/872"}],"wp:attachment":[{"href":"https:\/\/welderacademy.com\/wp-json\/wp\/v2\/media?parent=868"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/welderacademy.com\/wp-json\/wp\/v2\/categories?post=868"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/welderacademy.com\/wp-json\/wp\/v2\/tags?post=868"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}