{"id":1216,"date":"2022-02-24T02:19:50","date_gmt":"2022-02-24T10:19:50","guid":{"rendered":"https:\/\/www.huilicnc.com\/?p=1216"},"modified":"2022-02-24T02:25:56","modified_gmt":"2022-02-24T10:25:56","slug":"what-is-roughing-in-cnc-machining-how-is-it-different-from-finishing","status":"publish","type":"post","link":"https:\/\/www.huilicnc.com\/ru\/what-is-roughing-in-cnc-machining-how-is-it-different-from-finishing","title":{"rendered":"What Is Roughing In cNC Machining? How is It Different from Finishing?"},"content":{"rendered":"
You\u2019ve probably heard the terms Roughing and Finishing thrown around if you work in the manufacturing sector, especially machining. These two terms are often confused, or they are at least used incorrectly by most people.<\/p>\n\n\n\n
It is critical to understand the difference between them as it will make your process more efficient, whether that be cutting metal on a lathe, drill press, or mill.<\/p>\n\n\n\n
This article is to help you understand the difference between them and how they are used in your process to make CNC products<\/strong> sturdy.<\/p>\n\n\n\n First, we will start by looking at roughing in machining. When you hear someone say \u201clet\u2019s rough this part out before taking it to the finishing machine\u201d they are talking about roughing.<\/p>\n\n\n\n Roughing is a non-uniform cutting process that removes a lot of material from a workpiece as quickly as possible. Usually roughing will take place on a machine that has a higher spindle speed and feed rate than the finishing processes to come later.<\/p>\n\n\n\n The more material you can get off quickly, without paying attention to uniformity or accuracy of your part, the faster you finish your product and move on to the next step in the process. Roughing is all about time, not quality.<\/p>\n\n\n\n There are many benefits to rough machining. They include:<\/p>\n\n\n\n Now that we have a better idea of what rough machining is, let\u2019s look at how it relates to spindle speed and feed rate.<\/p>\n\n\n\n It is important to note here that spindle speed and feed rate are inversely related when it comes to roughing. That means as one goes up, the other goes down. This is because when you increase the spindle speed the cutting edges on your tools apply less pressure to the metal as they cut.<\/p>\n\n\n\n This causes a lighter cut that allows you to take more material off rapidly. The drawback is that it can lead to inaccuracies, chatter marks, burrs, and tool wear if the speeds are too high.<\/p>\n\n\n\n On the other hand, increasing the feed rate increases the amount of pressure applied by the cutting edges on your tools. This pressure allows you to get more accurate cuts and produce a better finish part. The drawback is that your machine can\u2019t go too fast because it might cause deflection of the material or burn marks on your product.<\/p>\n\n\n\n Finishing, also known as secondary operations, will be done after roughing on the same machine. Finishing operations are all about getting your product to look like what you designed it to be, with as few defects or burrs as possible.<\/p>\n\n\n\n The goal of finishing is to make the part look good and also match what you need from a dimensional standpoint. Examples of secondary operations include performing hole drilling, counter boring, knurling, engraving, and others.<\/p>\n\n\n\n Just like with roughing, there is no set amount of feed rate or spindle speed you should use when it comes to finishing machining. The only way to find the best settings for your part is through trial and error through testing and experience.<\/p>\n\n\n\n The most important thing for you to know about spindle speed and feed rate when it comes to finishing is that you need to run your part at the lowest speed you can while still getting a good finish. This will reduce deflection, vibrations, burrs, tool marks, and other defects.<\/p>\n\n\n\n If you’re to meet CNC machining <\/strong>requirements, you need to understand what the difference is between roughing and finishing milling. It’s easy to see that both processes are interrelated, but how do they relate?<\/p>\n\n\n\n Roughing is the first cutting operation you need to do in your production cycle. You will want to get this done as quickly as possible while still producing an accurate product. You can do this by taking deep cuts with your tools, which means you’ll use the largest spindle speeds possible.<\/p>\n\n\n\n When it comes to finishing, the focus is on getting the surface finish of your part as smooth and defect-free as possible. Since you’re using small spindle speeds for this step, you will end up taking a lot more time than you did with roughing. This is okay as long as you’re getting the surface finish that your customer wants, and it’s also where you want to focus on lowering vibrations and deflections to produce an even better product.<\/p>\n\n\n\n The specific differences between the processes can be classified as below:<\/p>\n\n\n\n As you can see, the difference between roughing and finishing metal machining is what your focus needs to be during each process. The easiest way to determine which of these two processes you’re trying to do is by looking at how fast you want to remove material from your part.<\/p>\n\n\n\n If you want to remove as much material as possible from your workpiece, you’re roughing. If you want to take a lot of time and ensure that the surface finish of your part is top-notch, then this means you’re doing finishing machining.<\/p>","protected":false},"excerpt":{"rendered":" You\u2019ve probably heard the terms Roughing and Finishing thrown around if you work in the manufacturing sector, especially machining. These two terms are often confused, or they are at least used incorrectly by most people. It is critical to understand the difference between them as it will make your process more efficient, whether that be […]<\/p>","protected":false},"author":1,"featured_media":1402,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none"},"categories":[6],"tags":[],"_links":{"self":[{"href":"https:\/\/www.huilicnc.com\/ru\/wp-json\/wp\/v2\/posts\/1216"}],"collection":[{"href":"https:\/\/www.huilicnc.com\/ru\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.huilicnc.com\/ru\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.huilicnc.com\/ru\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.huilicnc.com\/ru\/wp-json\/wp\/v2\/comments?post=1216"}],"version-history":[{"count":0,"href":"https:\/\/www.huilicnc.com\/ru\/wp-json\/wp\/v2\/posts\/1216\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.huilicnc.com\/ru\/wp-json\/wp\/v2\/media\/1402"}],"wp:attachment":[{"href":"https:\/\/www.huilicnc.com\/ru\/wp-json\/wp\/v2\/media?parent=1216"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.huilicnc.com\/ru\/wp-json\/wp\/v2\/categories?post=1216"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.huilicnc.com\/ru\/wp-json\/wp\/v2\/tags?post=1216"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}What is Roughing in Machining?<\/strong><\/h2>\n\n\n\n
What are the Benefits of Rough Machining?<\/strong><\/h3>\n\n\n\n
Spindle\/Feed Speed vs. Feed Rate<\/strong><\/h3>\n\n\n\n
What Is Finishing in Machining?<\/strong><\/h2>\n\n\n\n
What is the Difference Between Roughing and Finishing in Machining <\/strong><\/h2>\n\n\n\n