鍛造框和熱璇壓框的問題 - 汽車
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By Rachel
at 2019-05-09T12:01
at 2019-05-09T12:01
Table of Contents
以下整理一下DYE葛格的論述
一般說的旋壓,就是鑄造後旋壓
所以一般我們是用旋壓(鑄造) vs. 鍛造比較
以DYE葛格的說法就是
強度(抗拉)來說,鑄造<鍛造<旋壓,其中差距其實不大的
當然是同材質同等級的施工上
那DYE這邊講的是常常旋壓輪圈業者表示: 你看原本那麼厚經過旋壓強度一定很高
但那是不能比較的,因為你只是把多餘的料推出去變成你想要的形狀
結論:
有錢追求爽度,其實直上鍛造免得心理一堆OS
沒錢找品質穩定的大廠鑄造,並不會差太多
至於那些廠品質穩定,我就不知道了QQ 我只用過原廠框
補充以前DYE葛格以前的發言
--
→ DYE: 一般說的旋壓圈 就是鑄造後旋壓 05/09 10:42
→ DYE: 就是把中心輻條等鑄出來 外一圈當然有設計多料 用料旋壓 05/09 10:43
→ DYE: 沒有材料拿什麼旋 鑄造的時候把把要旋壓用的料的體積算進去 05/09 10:44
→ DYE: 所以不能把旋壓用的料的厚度當成成品的厚度 05/09 10:45
→ DYE: 如果是鑄造框 直接就鑄成薄件 一般用的框就是這麼薄 05/09 10:46
→ DYE: 旋壓前本來就厚 是故意做的 05/09 10:46
→ DYE: 拿故意做厚的切面 跟旋後的薄件比較 當然差得多 05/09 10:47
→ DYE: 如果想談 就等我說完 一條一條推文被切開就很難談 05/09 10:48
→ DYE: 旋壓前的半成品的切面厚度來比較 是沒有意義的 05/09 10:57
→ DYE: 旋壓圈成品 跟鑄造圈成品的切面 都是這麼薄 05/09 10:58
→ DYE: 至少是目視沒有明顯分別的 05/09 10:58
→ DYE: 拿半成品的切面 就是誤導消費者 原來這麼厚 做成這麼薄 05/09 10:59
一般說的旋壓,就是鑄造後旋壓
所以一般我們是用旋壓(鑄造) vs. 鍛造比較
以DYE葛格的說法就是
強度(抗拉)來說,鑄造<鍛造<旋壓,其中差距其實不大的
當然是同材質同等級的施工上
那DYE這邊講的是常常旋壓輪圈業者表示: 你看原本那麼厚經過旋壓強度一定很高
但那是不能比較的,因為你只是把多餘的料推出去變成你想要的形狀
結論:
有錢追求爽度,其實直上鍛造免得心理一堆OS
沒錢找品質穩定的大廠鑄造,並不會差太多
至於那些廠品質穩定,我就不知道了QQ 我只用過原廠框
補充以前DYE葛格以前的發言
→ DYE: 鍛造的較均勻 外圈凸緣的位置 抗拉強度約300mpa 屈服280-29001/15 22:02
→ DYE: 低壓鑄造的A356.2材質 良好的鋁錠 均勻的冷卻 正確熱處理01/15 22:04
→ DYE: 一般大廠都可以做到抗拉280-290mpa 少數測得300mpa01/15 22:04
→ DYE: 屈服強度大約220mpa01/15 22:05
→ DYE: 就抗拉強度來說 鑄造與鍛造差距不大 可以解釋是斷裂的強度01/15 22:06
→ DYE: 屈服強度 大致可以解釋成抗變形的強度01/15 22:07
→ DYE: 鑄造後旋壓 就大概比鑄造的好一點點01/15 23:27
→ DYE: 例如280到290的差距 01/15 23:28
→ DYE: 前文提到鍛造比較均勻 中心輪輻也強度差不多01/15 23:30
→ DYE: 鑄造的因為冷卻順序的關係 跟流向的方向性有關01/15 23:31
→ DYE: 中間輻條的抗拉強度較低 約26001/15 23:31
→ DYE: 所以鍛造的在輻條的部分有偷輕的空間 01/15 23:32
→ DYE: 但是輻條的設計影響更大 外力時有某些銳角的結構受力很大 01/15 23:33
→ DYE: 至於實際上輪子輕不輕 首先不同生產商沒有保證強度一樣 01/15 23:35
→ DYE: 就是在材料上大量的偷輕就能做輕 01/15 23:37
→ DYE: 意思是 只要你輻條的形狀合理 你就能偷輕 不管鑄造鍛造 01/15 23:40
→ DYE: 就像本文原po說 單就說個強度高低 到底高多少低多少01/16 17:28
→ DYE: 看清楚 抗拉強度或是屈服強度是單位截面積的強度01/16 17:28
→ DYE: 料件的實際強度 還跟尺寸有關 01/16 17:29
→ DYE: 還有另一件事 鍛造是控制參數比較少的工藝 01/16 17:34
→ DYE: 我不是說鍛造簡單 我是說環境造成的影響較少 01/16 17:34
→ DYE: 鑄造相對波動比較大 意思是做得好做得壞差別會較大 01/16 17:35
→ DYE: 鑄件裡缺陷一多 整個強度就下來了 01/16 17:36
→ DYE: 另外 像兩片式的鍛造 中間輻條是用鍛的 01/16 17:38
→ DYE: 輪圈的部分是用鋁板焊接捲圓桶 再用璇壓做出來的 01/16 17:39
→ DYE: 一片式的是先鍛輪輻條 整個再去璇壓 01/16 17:40
→ DYE: 還有一種是鍛大餅 輪輻處是鍛一個實心的大餅 01/16 17:42
→ DYE: 然後用全加工的做花紋 01/16 17:42
→ DYE: 鍛造也有不同的差別 01/16 17:42
→ DYE: 我認為一片式的 輪輻是直接鍛出來的 這是比較好的 01/16 17:55
→ DYE: 輪輻的造型 需要去計算哪一個點是在碰撞時受力最大 01/16 17:57
→ DYE: 有時稍微改一下加一點R角過渡一下 問題就能解決 01/16 17:58
→ DYE: 鍛大餅 然後全加工的 也就是一般說的訂製款 可能沒做應力計算 01/16 17:59
→ DYE: 對了 這是指6061材質去鍛的輪圈 現在大多數都是用這去鍛 01/16 22:48
→ DYE: 用70xx等去鍛的 當然強度可以更高 貴所以沒見人做 01/16 22:49
→ DYE: 那些吹噓上萬噸鍛機的鍛造都是唬人而已 01/16 22:53
→ DYE: 拿七號來鍛 對強度才有實質性的差異 01/16 22:55
--
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By Brianna
at 2019-09-06T18:23
at 2019-09-06T18:23
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By Mary
at 2019-09-10T00:09
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By Oscar
at 2019-09-12T14:20
at 2019-09-12T14:20
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By Heather
at 2019-09-15T23:17
at 2019-09-15T23:17
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By Kyle
at 2019-09-19T12:00
at 2019-09-19T12:00
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