{"id":9586,"date":"2017-10-19T11:51:27","date_gmt":"2017-10-19T09:51:27","guid":{"rendered":"http:\/\/www.steelavailable.com\/?p=9586"},"modified":"2020-07-20T03:00:36","modified_gmt":"2020-07-20T01:00:36","slug":"open-die-forging-vs-closed-die-forging","status":"publish","type":"post","link":"https:\/\/www.steelavailable.com\/zh\/open-die-forging-vs-closed-die-forging\/","title":{"rendered":"Open Die Forging vs. Closed Die Forging"},"content":{"rendered":"

\u5bf9\u4e0d\u8d77\uff0c\u6b64\u5185\u5bb9\u53ea\u9002\u7528\u4e8eEnglish<\/a>\u548c\ud55c\uad6d\uc5b4<\/a>\u3002<\/p>

This is a detailed guide about open die forging and closed die forging, including technical drawings and the direct comparison of these two different techniques.<\/em><\/strong><\/p>\n

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Steel Available can help you source Steel Forgings<\/a><\/p>\n

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As we saw in the earlier article \u201cThe History of Steel Forging\u201d<\/a>\u00a0the forging industry in the past was completely upside down. The techniques were different, the processes were inefficient, and the applications were bizarre! Although the techniques lead the way to advancements in future, a lot of changes were needed to bring efficiency in the process.<\/p>\n

However, in the modern society, forging engineering is involved in numerous industries like construction, machinery, agricultural, automotive, oilfield equipment, and more. More the consumption, more the advancement and increase in number of techniques!<\/p>\n

Steel billets can be processed and fabricated through various forging processes. Among the widely applied metal forging techniques is the closed die forging and open die forging.<\/strong> Although these two types of forging methods belong to the forging basics, it is not so difficult to point out the differences between the two.<\/p>\n

Let us have a deeper insight into the differences between open and closed die forging!<\/p>\n

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Open Die & Closed Die Forging Processes in Comparison<\/h3>\n

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Open and Closed Die Forging Processes in Comparison<\/em><\/p>\n

Original Source: Suranaree University of Technology<\/a><\/em><\/p>\n

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The Description<\/b><\/h3>\n

Open die forging process is also known as free forging.<\/b> The piece of metal is deformed between multiple dies that do not enclose the metal entirely. The dies hammer and stamp the metal through a series of movements to alter its dimensions until the desired shape is achieved.<\/p>\n

Closed die forging process is also referred to as impression forging.<\/b> It utilizes pressure to compress the metal piece to fill an enclosed die impression. A medium frequency induction heating furnace is used to heat the metal to get the desired shapes.<\/p>\n

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The Process<\/b><\/h3>\n

The technique of both open die forging and closed die forging is different. In general, for closed die forging, the molding dies are first made. The metal bars are then placed on the dies and forged to any shapes that are desired. <\/i><\/b>The closed die forging technique utilizes very less or no machining throughout the process. Also, net shape end products can be achieved.<\/p>\n

For open die forging, enormous compressive forces are imposed by the continuous strike of a forging hammer to deform the metal billets.<\/b> Go through the image illustration of the open die forging process here<\/a>.<\/p>\n

Interested in a short visual documentary on the open and closed die forging processes? Check out the forging process video:<\/p>\n

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