TWI383846B - A shell member having a concave angle, a forming device and a forming method - Google Patents
A shell member having a concave angle, a forming device and a forming method Download PDFInfo
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Description
本發明係有關於一種具倒凹角之殼件、成形裝置及成形方法，特別是有關於一種應用電磁脈衝技藝成形的具倒凹角之殼件、成形裝置及方法。The present invention relates to a shell member having an inverted concave angle, a forming device and a forming method, and more particularly to a shell member, forming device and method having an inverted concave angle formed by applying an electromagnetic pulse technique.
請參見圖1A、圖1B，目前具有倒凹角12之殼件11，特別是在3C電子產品10的應用上，因為具有倒凹角12之側壁有時會有極淺(約10mm)的下凹深度的電子產品10殼件11不利於傳統沖壓成形模具設計，在脫模時會在該倒凹角12的部位卡模或難以組合並沖壓出極淺的凹模，因此目前該殼件11多為塑膠材質並以射出成形或真空成形工法所製成。但塑膠殼件11與金屬殼件相較之下，雖具有較彈性的成形塑性，但卻具有散熱不佳、剛性不足、塑膠感重等相對性的缺失。Referring to Figures 1A and 1B, there is currently a housing member 11 having an inverted concave corner 12, particularly in the application of the 3C electronic product 10, since the sidewall having the inverted concave corner 12 sometimes has a very shallow (about 10 mm) concave depth. The electronic product 10 shell member 11 is not conducive to the traditional stamping forming mold design, and it is difficult to combine or punch a very shallow concave mold at the portion of the inverted concave corner 12 during demolding, so the shell member 11 is currently mostly plastic. The material is made by injection molding or vacuum forming. However, compared with the metal shell member, the plastic shell member 11 has a relatively flexible forming plasticity, but has a lack of relative heat dissipation, insufficient rigidity, and plastic sensitivity.
本發明目的係提供一種以電磁力進行殼件之自由脹形或靠模成形的成形方法。本發明更包含上述成形方法之裝置及其製成品。SUMMARY OF THE INVENTION An object of the present invention is to provide a forming method for freely expanding or forming a shell member by electromagnetic force. The present invention further includes an apparatus for the above forming method and a finished product thereof.
為提供上述殼件之自由脹形的成形方法，本發明揭示的成形方法步驟包括：提供一金屬薄板或其複合材所製成的預成形基材，其具有一形成凹陷部的「內側」及一對應於該凹陷部外圍形成一側壁的「外側」。將預成形基材以凹陷部面對該線圈固定座設置於一線圈固定座，線圈固定座具有電性耦接一脈衝電流供應器之一電磁線圈。以一壓塊抵靠預成形基材之外側，並預留側壁一自由脹形空間。接通電磁線圈電力以進行電磁脈衝成形，使該側壁外擴而自由脹形而形成一倒凹角。In order to provide a forming method for the free bulging of the above-mentioned case member, the forming method step disclosed in the present invention comprises: providing a preformed substrate made of a metal thin plate or a composite material thereof, having a "inside" forming a depressed portion and An "outer side" corresponding to a periphery of the depressed portion is formed. The pre-formed substrate is disposed on the coil holder with the recessed portion facing the coil holder, and the coil holder has an electromagnetic coil electrically coupled to a pulse current supply. A press block abuts against the outer side of the preformed substrate, and a side wall is provided with a free bulging space. The electromagnetic coil power is turned on to perform electromagnetic pulse forming, and the side wall is expanded and freely bulged to form an inverted concave angle.
為提供上述殼件之靠模成形的成形方法，本發明揭示的成形方法步驟包括：提供一金屬薄板或其複合材所製成的預成形基材，其具有一內側及一外側，內側形成一凹陷部，外側對應於凹陷部外圍形成一側壁。將預成形基材置於一線圈固定座及一分割式成形模具之間，凹陷部係面對線圈固定座套置，線圈固定座具有電性耦接一脈衝電流供應器之一電磁線圈，分割式成形模具對應於該側壁處的一模穴具有一拔模角。提供電磁線圈電力以進行電磁脈衝成形，使側壁外擴並貼合模穴而形成一對應該拔模角之倒凹角。In order to provide a molding method for forming the above-mentioned shell member, the forming method step disclosed in the present invention comprises: providing a preformed substrate made of a metal thin plate or a composite material thereof, having an inner side and an outer side, and an inner side forming a In the depressed portion, the outer side forms a side wall corresponding to the periphery of the depressed portion. The pre-formed substrate is placed between a coil fixing base and a split forming mold, and the concave portion is sleeved facing the coil fixing seat, and the coil fixing base is electrically coupled with one electromagnetic current coil of a pulse current supply, and is divided The forming die has a draft angle corresponding to a cavity at the side wall. The electromagnetic coil power is supplied for electromagnetic pulse forming, and the side walls are expanded outwardly and attached to the cavity to form a pair of inverted concave angles which should be at the draft angle.
本發明之特點係在於：1.本案利用電磁力進行殼件之側壁成形，模具與線圈結構簡單，可成形具有倒凹角的殼件。2.容易進行產品自動化及量化生產。3.尺寸精度高、產品表面品質佳。The invention is characterized in that: 1. In this case, the side wall of the shell member is formed by electromagnetic force, and the mold and the coil structure are simple, and the shell member having the inverted concave angle can be formed. 2. Easy product automation and quantitative production. 3. High dimensional accuracy and good surface quality.
茲配合圖式將本發明較佳實施例詳細說明如下。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The preferred embodiments of the present invention will be described in detail below with reference to the drawings.
本發明中之電磁脈衝成形係當電磁線圈組接通脈衝電流時胚料(預成形基材)會感應產生渦電流並與線圈形成一互斥電磁力，該互斥力係驅使金屬薄板或其複合材所製成的預成形基材胚料外擴變形。In the electromagnetic pulse forming method of the present invention, when the electromagnetic coil group is turned on by a pulse current, the billet (preformed substrate) induces an eddy current and forms a mutually exclusive electromagnetic force with the coil, and the mutual repulsive force drives the metal thin plate or its composite. The preformed substrate blank made of the material is expanded and deformed.
圖2A至圖2D繪示本發明一實施例之殼件的成形方法的結構流程剖面示意圖，本實施例之殼件的成形方法屬於自由脹形式，成形步驟包括：2A to 2D are schematic cross-sectional views showing the structure of a method for forming a shell member according to an embodiment of the present invention. The forming method of the shell member of the present embodiment is in a form of free expansion, and the forming step includes:
請參閱圖2A，首先提供一預成形基材21，該預成形基材21係為一高導電率之金屬薄板或其複合材所製成，可以利用新式工法或習知技術之液壓、鑄造或衝壓預先成形。較佳金屬薄板之製成材料包含鋁合金、積層板(Ti/Al)、金、銀或銅。複合材可由金屬薄板及橡膠膜所構成、或由金屬薄板及塑膠膜所構成。預成形基材21具有一內側211及一外側212，內側211形成一凹陷部2111。在本實施例中，該凹陷部2111具有正凹角，該凹陷部2111之下凹口定義出一第一寬度D1。外側212對應於該凹陷部2111的外圍形成一側壁213。Referring to FIG. 2A, a preformed substrate 21 is first provided. The preformed substrate 21 is made of a high-conductivity metal sheet or a composite thereof, and can be hydraulically or cast using a new method or a conventional technique. Stamping is preformed. The material of the preferred metal sheet comprises an aluminum alloy, a laminate (Ti/Al), gold, silver or copper. The composite material may be composed of a metal thin plate and a rubber film, or may be composed of a metal thin plate and a plastic film. The preformed substrate 21 has an inner side 211 and an outer side 212, and the inner side 211 forms a recessed portion 2111. In the embodiment, the recessed portion 2111 has a positive concave angle, and the recessed portion below the recessed portion 2111 defines a first width D1. The outer side 212 forms a side wall 213 corresponding to the outer periphery of the recess 2111.
請參照圖2B，再將該預成形基材21套置於一線圈固定座30上，其套置方式係將該凹陷部2111(即內側211)面對該線圈固定座30而設置，該線圈固定座30做為成形過程中承受反作用力之支撐，該線圈固定座30具有一電磁線圈31，該一電磁線圈31係電性耦接一脈衝電流供應器32。Referring to FIG. 2B, the preformed substrate 21 is placed on a coil holder 30, and the sleeve portion is disposed by facing the recess portion 2111 (ie, the inner side 211) facing the coil holder 30. The fixing base 30 is supported by a reaction force during the forming process. The coil fixing base 30 has an electromagnetic coil 31 electrically coupled to a pulse current supply 32.
再如圖2C所示，續以一壓塊40抵靠該預成形基材21之外側212而夾緊該預成形基材21於線圈固定座30上，壓塊40內面與預成形基材21之間並預留該側壁213一自由脹形空間A。As shown in FIG. 2C, the preformed substrate 21 is clamped to the coil holder 30 by a pressing block 40 against the outer side 212 of the preformed substrate 21. The inner surface of the compact 40 and the preformed substrate are further formed. The side wall 213 is reserved between 21 and a free bulging space A.
請參照圖2D，再以脈衝電流供應器32提供該電磁線圈31脈衝電力以進行電磁脈衝成形(Electromagnetic forming、Magnetic pulse forming)，使該側壁213自由脹形而外擴成一已成形基材21a，該已成形基材21a之側壁213具有一倒凹角214，該倒凹角214造成已成形基材21a之相對兩側壁213之間的一第二寛度D2(第二寛度D2垂直於該壓塊40的加壓方向P或退出方向)大於該第一寛度D1，且該側壁213不接觸該壓塊40。Referring to FIG. 2D, the pulse current of the electromagnetic coil 31 is supplied by the pulse current supplier 32 to perform electromagnetic pulse forming (Electromagnetic forming, Magnetic pulse forming), and the sidewall 213 is freely expanded and expanded into a formed substrate 21a. The sidewall 213 of the formed substrate 21a has an inverted concave angle 214 which causes a second twist D2 between the opposite side walls 213 of the formed substrate 21a (the second twist D2 is perpendicular to the compact) The pressing direction P or the exiting direction of 40 is greater than the first twist D1, and the side wall 213 does not contact the pressing block 40.
圖3A至圖3D繪示本發明另一實施例之殼件的成形方法的結構流程剖面示意圖。本實施例之殼件的成形方法屬於靠模成形的成形方式，成形步驟包括：請參照圖3A，提供一預成形基材21，該預成形基材21為一金屬薄板或其複合材所製成，其具有一內側211及一外側212，該內側211形成一凹陷部2111。在本實施例中，該凹陷部2111具有正凹角，該凹陷部2111之下凹口定義出一第一寛度D1。外側212對應於該凹陷部2111的外圍而形成一側壁213。3A to 3D are schematic cross-sectional views showing the structure of a method for forming a shell member according to another embodiment of the present invention. The forming method of the shell member of the present embodiment belongs to a molding method of forming a mold. The forming step includes: referring to FIG. 3A, a preforming substrate 21 is provided, which is made of a metal thin plate or a composite material thereof. The 211 has an inner side 211 and an outer side 212, and the inner side 211 forms a recess 2111. In this embodiment, the recessed portion 2111 has a positive concave angle, and the recess below the recessed portion 2111 defines a first twist D1. The outer side 212 corresponds to the outer periphery of the recessed portion 2111 to form a side wall 213.
請續參照圖3B、圖3C，將該預成形基材21以該凹陷部2111係面對一線圈固定座30並套置於該線圈固定座30上，且該預成形基材21位於一分割式成形模具50之下， 並定位該分割式成形模具50，即使得該預成形基材21位於該線圈固定座30與該分割式成形模具50之間，該線圈固定座30具有一電磁線圈31，該電磁線圈31電性耦接一脈衝電流供應器32，該分割式成形模具50對應於該側壁213處的一模穴51內具有一拔模角52，該拔模角52為負角。Referring to FIG. 3B and FIG. 3C , the preformed substrate 21 faces the coil holder 30 with the recessed portion 2111 and is sleeved on the coil fixing base 30 , and the preformed substrate 21 is located in a segment. Under the molding die 50, And positioning the split molding die 50 such that the preformed substrate 21 is located between the coil mount 30 and the split molding die 50. The coil mount 30 has an electromagnetic coil 31, and the electromagnetic coil 31 is electrically A splitting current supply unit 32 is coupled to the mold cavity 51 at the side wall 213 and has a draft angle 52 which is a negative angle.
再該參閱圖3D，利用該脈衝電流供應器32提供該電磁線圈31電力以進行電磁脈衝成形，使該側壁213外擴並貼合該模穴51而形成一已成形基材21a，該已成形基材21a對應於該拔模角52具有一倒凹角214，該倒凹角214造成已成形基材21a之相對兩側壁213間的第二寛度D2(該第二寛度D2垂直於該分割式成形模具50的拔模方向)大於該第一寛度D1，該分割式成形模具50之脫模方向E係與與組合面501垂直，以與成形基材21a分離。Referring to FIG. 3D, the electromagnetic current of the electromagnetic coil 31 is provided by the pulse current supply 32 for electromagnetic pulse forming, and the sidewall 213 is expanded and attached to the cavity 51 to form a formed substrate 21a. The substrate 21a has an inverted concave angle 214 corresponding to the draft angle 52, and the inverted concave angle 214 causes a second twist D2 between the opposite side walls 213 of the formed substrate 21a (the second twist D2 is perpendicular to the split type) The draft direction of the forming die 50 is larger than the first twist D1, and the stripping direction E of the split molding die 50 is perpendicular to the combined face 501 to be separated from the molded substrate 21a.
如圖4所示，上述方法在脫模、並自該線圈固定座30取出該已成形基材21a後，去除該外圍廢料215(該外圍廢料215除了可額外加工去除外，也可利用模具造型設計，在進行電磁脈衝成形時一併去除，如後述)之後，即可形成一具倒凹角的殼件20。As shown in FIG. 4, after the mold is demolded and the formed substrate 21a is taken out from the coil holder 30, the peripheral waste 215 is removed (the peripheral waste 215 can be molded by using an additional mold. The design is performed by collectively removing electromagnetic pulse forming, as will be described later, to form a shell member 20 having an inverted concave angle.
另外，在前揭實施例中，該線圈固定座30係以絕緣材料所製成，較佳者可包括工程塑膠或玻纖樹脂。In addition, in the foregoing embodiment, the coil fixing base 30 is made of an insulating material, preferably an engineering plastic or a glass fiber resin.
如圖5繪示的本發明之殼件的成形裝置第一實施例。本實施例之電子產品之殼件的成形裝置係適用於對一預成 形基材21之金屬薄板或其複合材的塑形加工成具有倒凹角的殼件，該預成形基材21具有一內側211及一外側212，該內側211形成一凹陷部2111，該外側212對應於該凹陷部2111外圍形成一側壁213，本實施例之成形裝置包含：一具有一凸檯301的線圈固定座30，在該凸檯301內部靠外側處匝設一電磁線圈31，該電磁線圈31電性耦接一脈衝電流供應器32，並於該線圈固定座30上設置一壓塊40，其中該預成形基材21係以該內側211對應於該線圈固定座30的方式套設於該凸檯301上，該壓塊40係抵緊該預成形基材21之該外側211，且與該外側211相對的該壓塊40內面預留一自由脹形空間供該側壁213成形，且該側壁213不接觸該壓塊40。A first embodiment of a forming apparatus for a casing member of the present invention as shown in FIG. The forming device of the shell member of the electronic product of the embodiment is suitable for a pre-forming The metal sheet of the shaped substrate 21 or the composite material thereof is shaped into a shell member having an inverted concave corner. The preformed substrate 21 has an inner side 211 and an outer side 212. The inner side 211 forms a recessed portion 2111. The outer side 212 Corresponding to the periphery of the recessed portion 2111, a sidewall 213 is formed. The forming device of the embodiment comprises: a coil fixing base 30 having a boss 301, and an electromagnetic coil 31 is disposed on the outer side of the boss 301. The coil 31 is electrically coupled to a pulse current supply 32, and a pressing block 40 is disposed on the coil fixing base 30. The pre-formed substrate 21 is sleeved in such a manner that the inner side 211 corresponds to the coil fixing base 30. On the boss 301, the pressing block 40 abuts the outer side 211 of the preformed substrate 21, and a free bulging space is reserved on the inner surface of the pressing block 40 opposite to the outer side 211 for forming the side wall 213. And the side wall 213 does not contact the pressing block 40.
如圖6所繪示的本發明之殼件的成形裝置第二實施例。本實施例與第一實施例的線圈固定座30、凸檯301、電磁線圈31的條件相似，而以一分割式成形模具50替代該壓塊40，該分割式成形模具50，係供抵緊該預成形基材21之該外側212，該分割式成形模具50之對應於該側壁213處的一模穴51具有一拔模角52供該預成形基材21成形貼合，該拔模角52為負角，該分割式成形模具50具有一組合面501，且其脫模方向E係與該組合面501垂直。A second embodiment of a forming apparatus for a casing member of the present invention as shown in FIG. The present embodiment is similar to the conditions of the coil holder 30, the boss 301, and the electromagnetic coil 31 of the first embodiment, and the split block 40 is replaced by a split mold 50, which is used for abutting. The outer surface 212 of the pre-formed substrate 21, a cavity 51 corresponding to the sidewall 213 of the split molding die 50 has a draft angle 52 for forming and fitting the preformed substrate 21, the draft angle 52 is a negative angle, and the split molding die 50 has a combined face 501, and its demolding direction E is perpendicular to the combined face 501.
如圖7所示，為本發明之殼件的成形裝置第三實施例。其中該分割式成形模具50之該拔模角52內壁面53外緣更具有切刃521，可使該電磁脈衝成形時，使該側壁213外擴並貼合該模穴51的同時，一併將形成該殼件20之已成形基材21a的外圍廢料215切除。As shown in Fig. 7, a third embodiment of the forming apparatus for the case member of the present invention is shown. Wherein, the outer edge of the inner wall surface 53 of the drafting angle 52 of the split molding die 50 further has a cutting edge 521, so that when the electromagnetic pulse is formed, the side wall 213 is expanded and attached to the cavity 51, and together The peripheral waste 215 of the formed substrate 21a forming the shell member 20 is cut away.
如圖8所示之本發明之殼件的成形裝置第四實施例。其中，該線圈固定座30之凸檯301內的該電磁線圈可為單匝或多匝繞線線圈312。A fourth embodiment of a forming apparatus for a casing member of the present invention as shown in FIG. The electromagnetic coil in the boss 301 of the coil holder 30 may be a single turn or a multi turn winding 312.
請參閱圖9所示，為使該預成形基材21側壁213外擴的磁力得到較佳的發揮，該電磁線圈外側的輪廓曲線B可作對應的形狀調整，原則上電磁線圈31愈靠近側壁213及拔模角52，其可對該側壁213作微特徵(micro-featured)加工能力愈強，固可根據側壁213之幾何造形，設計電磁線圈31剖面形狀，藉由電磁線圈31與預成形基材21之相對位置來控制胚料與線圈之間電磁力的強弱，因此，可將該電磁線圈外側的輪廓曲線B大抵對應於該分割式成形模具50之該拔模角52內壁面53的輪廓曲線C，以提高施加該處的電磁力。Referring to FIG. 9 , in order to better exert the magnetic force of the sidewall 213 of the preformed substrate 21 , the contour curve B on the outer side of the electromagnetic coil can be adjusted correspondingly. In principle, the electromagnetic coil 31 is closer to the sidewall. 213 and the draft angle 52, the micro-featured processing capability of the sidewall 213 is stronger, and the cross-sectional shape of the electromagnetic coil 31 is designed according to the geometric shape of the sidewall 213, and the electromagnetic coil 31 and the preform are formed. The relative position of the substrate 21 controls the strength of the electromagnetic force between the blank and the coil. Therefore, the contour curve B outside the electromagnetic coil can be largely corresponding to the inner wall surface 53 of the draft angle 52 of the split molding die 50. Contour curve C to increase the electromagnetic force applied there.
值得一提的是，上述實施例中，該分割式成形模具50之該拔模角52的內壁面53上具有一淺凹541或淺凸541的微特徵54造型(凹入深度或凸起高度為0.5μm~0.5mm)，這將使該電磁脈衝成形該側壁213倒凹角214的同時，也會在該倒凹角214外壁面形成對應的微特徵2141造型(凹入深度或凸起高度亦為0.5μm~0.5mm)，如圖10所示。It should be noted that, in the above embodiment, the inner wall surface 53 of the draft angle 52 of the split molding die 50 has a micro-feature 54 shape (recessed depth or protrusion height) of a shallow concave 541 or a shallow convex 541. It is 0.5μm~0.5mm), which will make the electromagnetic pulse form the concave angle 214 of the side wall 213, and also form the corresponding micro-feature 2141 on the outer wall surface of the inverted concave angle 214 (the concave depth or the convex height is also 0.5μm~0.5mm), as shown in Figure 10.
請再參見圖10所示，由上述實施例可一次成形之殼件20包含一金屬薄板或其複合材所製成之已成形基材21a，該已成形基材21a包括一內側211及一外側212。內側211形成有一凹陷部2111，該凹陷部2111之下凹口具有一第一寬度D1。外側212對應於該凹陷部2111外圍形成有一具倒凹角214之側壁213。倒凹角214造成相對兩側壁213之間的第二寬度D2大於第一寬度D1。該側壁213之外壁面具有一淺凹或淺凸高度為約0.5μm~約0.5mm的微特徵2141造型。Referring to FIG. 10 again, the case member 20 which can be formed at one time by the above embodiment comprises a formed substrate 21a made of a metal thin plate or a composite material thereof. The formed substrate 21a includes an inner side 211 and an outer side. 212. The inner side 211 is formed with a recess 2111, and the recess below the recess 2111 has a first width D1. The outer side 212 defines a side wall 213 having an inverted concave angle 214 corresponding to the periphery of the recessed portion 2111. The undercut 214 causes the second width D2 between the opposite side walls 213 to be greater than the first width D1. The outer wall of the side wall 213 has a microfeature 2141 shape having a shallow or shallow convex height of about 0.5 μm to about 0.5 mm.
本發明之特點係在於：本發明利用電磁力進行殼件之側壁成形，模具與線圈結構簡單，可成形具有倒凹角及側壁微特徵造型的殼件。本發明具有成形快速，容易進行產品自動化及量化生產的優點。本發明的尺寸精度高、產品表面品質佳，且本發明可在同一模具內成形倒凹角及邊線稜角。The invention is characterized in that: the invention utilizes electromagnetic force to form the side wall of the shell member, and the mold and the coil structure are simple, and the shell member having the inverted concave angle and the side wall micro-feature shape can be formed. The invention has the advantages of rapid forming, easy product automation and quantitative production. The invention has high dimensional precision and good surface quality of the product, and the invention can form the undercut angle and the edge and corner in the same mold.
綜上所述，乃僅記載本發明為呈現解決問題所採用的技術手段之實施方式或實施例而已，並非用來限定本發明專利實施之範圍。即凡與本發明專利申請範圍文義相符，或依本發明專利範圍所做的均等變化與修飾，皆為本發明專利範圍所涵蓋。In the above, it is merely described that the present invention is an embodiment or an embodiment of the technical means for solving the problem, and is not intended to limit the scope of implementation of the present invention. That is, the equivalent changes and modifications made in accordance with the scope of the patent application of the present invention or the scope of the invention are covered by the scope of the invention.
10．．．電子產品10. . . electronic product
11．．．塑膠殼件11. . . Plastic case
12．．．倒凹角12. . . Inverted corner
20．．．殼件20. . . Shell
21．．．預成形基材twenty one. . . Preformed substrate
21a．．．已成形基材21a. . . Formed substrate
211．．．內側211. . . Inside
2111．．．凹陷部2111. . . Depression
212．．．外側212. . . Outside
213．．．側壁213. . . Side wall
214．．．倒凹角214. . . Inverted corner
2141‧‧‧微特徵2141‧‧‧Micro-features
215‧‧‧外圍廢料215‧‧‧ peripheral waste
30‧‧‧線圈固定座30‧‧‧Coil holder
301‧‧‧凸檯301‧‧‧ boss
31‧‧‧電磁線圈31‧‧‧Electromagnetic coil
312‧‧‧多匝繞線線圈312‧‧‧Multiple winding coils
32‧‧‧脈衝電流供應器32‧‧‧Pulse current supply
40‧‧‧壓塊40‧‧‧Clamps
50‧‧‧分割式成形模具50‧‧‧Split forming mould
501‧‧‧組合面501‧‧‧ combination face
51‧‧‧模穴51‧‧‧ cavity
52‧‧‧拔模角52‧‧‧ draft angle
521‧‧‧切刃521‧‧‧ cutting edge
53‧‧‧內壁面53‧‧‧ inner wall
54‧‧‧微特徵54‧‧‧Micro-features
541‧‧‧淺凹541‧‧‧dove
542‧‧‧淺凸542‧‧‧Shallow convex
A‧‧‧自由脹形空間A‧‧‧Free bulging space
B‧‧‧電磁線圈外側的輪廓曲線B‧‧‧ contour curve outside the electromagnetic coil
C‧‧‧倒凹角壁面的輪廓曲線C‧‧‧ contour curve of inverted concave wall
D1‧‧‧第一寛度D1‧‧‧ first temperature
D2‧‧‧第二寛度D2‧‧‧second temperature
E‧‧‧脫模方向E‧‧‧ Stripping direction
P‧‧‧加壓方向P‧‧‧Pressure direction
圖1A繪示先前技術之電子產品；1A illustrates an electronic product of the prior art;
圖1B繪示圖1之殼件的側視剖面示意圖；1B is a side cross-sectional view of the shell member of FIG. 1;
圖2A至圖2D繪示本發明一實施例之殼件的成形方法的結構流程剖面示意圖；2A to 2D are schematic cross-sectional views showing the structure of a method for forming a shell member according to an embodiment of the present invention;
圖3A至圖3D繪示本發明另一實施例之殼件的成形方法的結構流程剖面示意圖；3A to 3D are schematic cross-sectional views showing the structure of a method for forming a shell member according to another embodiment of the present invention;
圖4繪示圖3A至圖2D所成形之殼件側視剖面圖；Figure 4 is a side cross-sectional view showing the shell member formed by Figures 3A to 2D;
圖5繪示本發明之殼件的成形裝置第一實施例；Figure 5 is a view showing a first embodiment of a forming device for a casing member of the present invention;
圖6繪示本發明之殼件的成形裝置第二實施例；Figure 6 is a view showing a second embodiment of the forming device for the shell member of the present invention;
圖7繪示本發明之殼件的成形裝置第三實施例；Figure 7 is a view showing a third embodiment of the forming device of the casing member of the present invention;
圖8繪示本發明之殼件的成形裝置第四實施例；Figure 8 is a view showing a fourth embodiment of the forming device for the shell member of the present invention;
圖9繪示本發明之殼件的成形裝置第五實施例；以及Figure 9 is a view showing a fifth embodiment of the forming device for the case member of the present invention;
圖10繪示圖9之裝置所成形之殼件剖面圖。Figure 10 is a cross-sectional view showing the shell member formed by the apparatus of Figure 9.
21a．．．已成形基材21a. . . Formed substrate
214．．．倒凹角214. . . Inverted corner
30．．．線圈固定座30. . . Coil mount
31．．．電磁線圈31. . . Electromagnetic coil
32．．．脈衝電流供應器32. . . Pulse current supply
50．．．分割式成形模具50. . . Split forming mold
D2．．．第二寬度D2. . . Second width
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW99121118A TWI383846B (en) | 2010-06-28 | 2010-06-28 | A shell member having a concave angle, a forming device and a forming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW99121118A TWI383846B (en) | 2010-06-28 | 2010-06-28 | A shell member having a concave angle, a forming device and a forming method |
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| Publication Number | Publication Date |
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| TW201200263A TW201200263A (en) | 2012-01-01 |
| TWI383846B true TWI383846B (en) | 2013-02-01 |
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| CN103831339B (en) * | 2014-03-18 | 2016-01-20 | 华中科技大学 | A kind of electro-magnetic forming method for tooling |
| CN107138614A (en) * | 2017-05-09 | 2017-09-08 | 昆山湘北精密金属有限公司 | A kind of mobile phone shell diel of rapid shaping |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200711761A (en) * | 2005-09-05 | 2007-04-01 | Fu-Tang Li | 3-D forming method and device for metallic plate |
| CN101683673A (en) * | 2008-09-24 | 2010-03-31 | 李福堂 | Molding method and device of molded object |
| TW201021936A (en) * | 2008-12-12 | 2010-06-16 | Metal Ind Res & Dev Ct | Device for producing patterns |
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2010
- 2010-06-28 TW TW99121118A patent/TWI383846B/en active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200711761A (en) * | 2005-09-05 | 2007-04-01 | Fu-Tang Li | 3-D forming method and device for metallic plate |
| CN101683673A (en) * | 2008-09-24 | 2010-03-31 | 李福堂 | Molding method and device of molded object |
| TW201021936A (en) * | 2008-12-12 | 2010-06-16 | Metal Ind Res & Dev Ct | Device for producing patterns |
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| TW201200263A (en) | 2012-01-01 |
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