{"id":368320,"date":"2024-05-23T12:59:33","date_gmt":"2024-05-23T12:59:33","guid":{"rendered":"\/forum\/forums\/reply\/368320\/"},"modified":"2024-05-23T12:59:33","modified_gmt":"2024-05-23T12:59:33","slug":"368320","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/368320\/","title":{"rendered":"Reply To: Metal forming \uff08spinning\uff09"},"content":{"rendered":"<p>&lt;p&gt;&lt;span lang=&#8221;EN-US&#8221;&gt;I&#8217;m very sorry for not explaining this issue clearly.&lt;\/span&gt;&lt;\/p&gt;&lt;p&gt;&lt;span lang=&#8221;EN-US&#8221;&gt;Working condition: Blank and die are connected by *Constrained_EXTRA_NODES-SET. The blank is formed through multiple processing steps by wheel.There are some issues here.&lt;\/span&gt;&lt;\/p&gt;&lt;p&gt;&lt;span lang=&#8221;EN-US&#8221;&gt;SECTION A:&lt;\/span&gt;&lt;\/p&gt;&lt;p&gt;&lt;span lang=&#8221;EN-US&#8221;&gt;<img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/05\/23-05-2024-1716469151-jiemian1.jpg\" alt=\"\" \/>&lt;\/span&gt;&lt;\/p&gt;&lt;p style=&#8221;margin-left: 18.0pt; text-indent: -18.0pt; mso-list: l0 level1 lfo1;&#8221;&gt;&lt;!&#8211; [if !supportLists]&#8211;&gt;&lt;span lang=&#8221;EN-US&#8221;&gt;&lt;span style=&#8221;mso-list: Ignore;&#8221;&gt;1\u3001&lt;\/span&gt;&lt;\/span&gt;&lt;!&#8211;[endif]&#8211;&gt;&lt;span lang=&#8221;EN-US&#8221;&gt;Normal circumstances:Rotating wheel speed 628 rad\/min (100r\/min), wheel feed rate 40mm\/\/min. The following is the result of my simulation.&lt;\/span&gt;&lt;\/p&gt;&lt;p style=&#8221;margin-left: 18.0pt;&#8221;&gt;&lt;span lang=&#8221;EN-US&#8221;&gt;This is a normal phenomenon.&lt;\/span&gt;&lt;\/p&gt;&lt;p style=&#8221;margin-left: 18.0pt;&#8221;&gt;&lt;span lang=&#8221;EN-US&#8221;&gt;<img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/05\/23-05-2024-1716468771-2.gif\" alt=\"\" \/>&lt;\/span&gt;&lt;\/p&gt;&lt;p style=&#8221;margin-left: 18.0pt; text-indent: -18.0pt; mso-list: l0 level1 lfo1;&#8221;&gt;&lt;!&#8211; [if !supportLists]&#8211;&gt;&lt;span lang=&#8221;EN-US&#8221;&gt;&lt;span style=&#8221;mso-list: Ignore;&#8221;&gt;2\u3001&lt;\/span&gt;&lt;\/span&gt;&lt;!&#8211;[endif]&#8211;&gt;&lt;span lang=&#8221;EN-US&#8221;&gt;However, When I adjusted the speed of the die to 3140rad\/min (500r\/min), the wheel speed remains constant. After being in contact with the wheel for a period of time, the blank detached from contact with the spinning wheel and deformed itself.( Blank,-press down on his own) This is seriously divorced from the facts.&lt;\/span&gt;&lt;\/p&gt;&lt;p style=&#8221;margin-left: 18.0pt; text-indent: -18.0pt; mso-list: l0 level1 lfo1;&#8221;&gt;&lt;span lang=&#8221;EN-US&#8221;&gt;<img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/05\/23-05-2024-1716468813-1.gif\" alt=\"\" \/>&lt;\/span&gt;&lt;\/p&gt;&lt;p style=&#8221;margin-left: 18.0pt; text-indent: -18.0pt; mso-list: l0 level1 lfo1;&#8221;&gt;&lt;!&#8211; [if !supportLists]&#8211;&gt;&lt;span lang=&#8221;EN-US&#8221;&gt;&lt;span style=&#8221;mso-list: Ignore;&#8221;&gt;3\u3001&lt;\/span&gt;&lt;\/span&gt;&lt;!&#8211;[endif]&#8211;&gt;&lt;span lang=&#8221;EN-US&#8221;&gt;At that time, I thought the speed was given too fast, so I maintained a speed of 628 rad\/min (100r\/min), The wheel speed has been slowed down to 8mm\/min. But there are still issues with situation 2, except that the amplitude of deformation of the sheet metal itself decreases.&lt;\/span&gt;&lt;\/p&gt;&lt;p style=&#8221;margin-left: 18.0pt; text-indent: -18.0pt; mso-list: l0 level1 lfo1;&#8221;&gt;&lt;!&#8211; [if !supportLists]&#8211;&gt;&lt;span lang=&#8221;EN-US&#8221;&gt;&lt;span style=&#8221;mso-list: Ignore;&#8221;&gt;4\u3001&lt;\/span&gt;&lt;\/span&gt;&lt;!&#8211;[endif]&#8211;&gt;&lt;span lang=&#8221;EN-US&#8221;&gt;At 500r\/min, the blank showed outward drift, but the experimental blank did not show any outward drift. Why does this phenomenon occur ?&lt;\/span&gt;&lt;\/p&gt;&lt;p style=&#8221;margin-left: 18.0pt;&#8221;&gt;&lt;span lang=&#8221;EN-US&#8221;&gt;I want to know, Wheel, without putting pressure on Blank, What is the reason for Blank&#8217;s own deformation. At present, I speculate on my own whether it is related to dynamic relaxation phenomenon.But this problem has been bothering me for a long time and has not been solved yet.&lt;\/span&gt;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-368320","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"acf":[],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/368320","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/reply"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/368320\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=368320"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}