US20150093592A1 - Integrated Die Trim And Method - Google Patents
Integrated Die Trim And Method Download PDFInfo
- Publication number
- US20150093592A1 US20150093592A1 US14/565,884 US201414565884A US2015093592A1 US 20150093592 A1 US20150093592 A1 US 20150093592A1 US 201414565884 A US201414565884 A US 201414565884A US 2015093592 A1 US2015093592 A1 US 2015093592A1
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- United States
- Prior art keywords
- trimming
- blank
- die
- forming
- groove
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D24/00—Special deep-drawing arrangements in, or in connection with, presses
- B21D24/16—Additional equipment in association with the tools, e.g. for shearing, for trimming
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D23/00—Machines or devices for shearing or cutting profiled stock
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/02—2 layers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12347—Plural layers discontinuously bonded [e.g., spot-weld, mechanical fastener, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
Definitions
- the present disclosure generally relates to sheet metal stamping tools and methods. More particularly, the present disclosure relates to defining an integrated die trim for sheet metal products.
- Stamping operations may be used to form shaped steel components.
- the steel sheet is heated prior to forming a shaped blank.
- the shaped blank may be subsequently heat treated by a quenching operation. After the heat treatment process has been completed, the shaped blank exhibits very high mechanical strength properties. As such, subsequent forming or trimming of the hardened sheet steel blank may be challenging.
- a trimming operation may be required subsequent to the heat treatment process to further define an outer perimeter shape or create shaped apertures through the hardened steel blank.
- a trim die may include an upper trim steel moveable relative to a lower trim steel with the hardened steel blank positioned between the upper and lower trim steels. Due to the mechanical properties of the hardened blank, the forces imparted on the edges of the upper and lower trim steels may be great. Localized impact and shock loading may also exist. As a result of the trimming operation, premature wear or fracture of the trim steels may occur. Costly and time consuming repair or replacement of the trim steels may be required. Similar die wear and service life issues may exist when stamping and/or trimming steel sheets without previously heating and quenching the blank. The trim steels may exhibit undesirable wear even though the steel sheet has not been hardened.
- a sheet metal component may be constructed in accordance with the teachings of the present disclosure to include a three dimensionally shaped first surface, a three dimensionally shaped second surface opposite and extending substantially parallel to the first surface and an edge interconnecting and extending about the perimeter of the first and second shaped surfaces.
- the edge includes a sheared portion formed during a trimming operation and an indented portion formed during a forming operation prior to the trimming operation.
- a method of stamping a sheet metal component includes forming a steel sheet in a stamping press to include an indentation.
- the indentation extends from a first surface of the sheet toward a second opposite surface of the sheet.
- the method further includes separating a first portion of the sheet from a second portion of the sheet in a trimming press. The separating occurs by shearing through the remaining sheet material located at the indentation previously formed.
- FIG. 1 is a perspective view of a sheet metal blank before completion of a trimming operation
- FIG. 2 is a cross-sectional side view of a formed sheet metal blank positioned within a forming press
- FIG. 3 is a cross-sectional side view of a stamped sheet having an integral die trim positioned with a trimming press in accordance with the teachings of the present disclosure
- FIG. 4 is a fragmentary cross-sectional view of a part portion of a sheet metal blank separated from a scrap portion;
- FIG. 5 is a cross-sectional side view of a portion of the formed blank of FIGS. 2 ;
- FIG. 6 is a cross-sectional side view of another formed blank according to the teachings of the present disclosure.
- FIG. 1 depicts a formed, three dimensionally shaped, blank 10 .
- Blank 10 may be formed from an alloy sheet including materials such as ultra high strength steel and martensitic steel.
- a boron alloy steel may be used.
- the steel is typically provided in thicknesses ranging from 0 . 8 mm to 2 mm or more.
- a coil of material may be provided to the stamping facility. Portions of the steel sheet are fed from the coil and positioned within a blanking die. The blanking die cuts a length of material from the coil and may also define a rough outer perimeter of individual blanks to be subsequently formed.
- the blank may be transferred to a furnace where it may be heated to a temperature to facilitate forming.
- the furnace operates at 920° C.
- the blank may be heated within a forming press.
- the pre-heated or non-preheated blank is transferred to a hot forming press 12 that includes an upper forming die 14 and a lower forming die 16 .
- Upper forming die 14 includes a chisel 18 protruding from a surface 20 .
- Surface 20 defines the shape of an upper surface 22 of formed blank 10 .
- An upper surface 24 of lower forming die 16 defines the shape of a lower surface 26 of formed blank 10 .
- upper forming die 14 and lower forming die 16 may be heated to approximately 700° C.
- the upper and lower forming dies 14 , 16 are moved toward one another to impart a force on blank 10 .
- the contour of formed blank surfaces 22 , 26 are defined.
- chisel 18 deforms blank 10 to form an indentation or groove 28 extending inwardly from surface 22 .
- Groove 28 is substantially uninterrupted and extends about the periphery of the blank 10 .
- groove 28 may alternatively be formed as a series of grooves aligned with one another.
- a part portion 30 is defined on one side of groove 28 while a scrap portion 32 is defined on the other side of groove 28 as shown in FIG. 1 . In some cases, the relative positions of the part portion and the scrap portion may be reversed if the other portion is the desired product.
- the formed blank 10 is quenched within the die. This may be accomplished by cooling upper forming die 14 and lower forming die 16 by any number of methods previously known. The quenching operation changes the microstructure of the steel and hardens at least portions of formed blank 10 . It should be appreciated that the formed blank 10 may alternatively be quenched outside of forming press 12 .
- Trimming press 50 includes an upper pad 52 , a lower trimming die 54 and an upper trimming die 56 .
- Upper pad 52 is operable to clamp formed blank 10 against lower trimming die 54 .
- Upper trimming die 56 is moveable relative to lower trimming die 54 to separate part portion 30 from scrap portion 32 .
- Lower trimming die 54 includes a corner 58 positioned in communication with groove 28 .
- Formed blank 10 is positioned within trimming press 50 such that an edge 60 of lower trimming die 54 is substantially aligned with a bottom 62 of groove 28 .
- a minimum thickness “A” of formed blank 10 exists at bottom 62 .
- Dimension A is defined as the distance between surface 26 and bottom 62 .
- Bottom 62 also defines a depth of groove “B” as the distance from surface 22 to bottom 62 .
- groove 28 may also be varied to extend the life of forming press 12 and trimming press 50 while producing a desirable edge condition on part portion 30 .
- Various shapes of groove 28 will be described in greater detail below.
- upper trimming die 56 is manufactured with a radius 64 as opposed to a sharp edge typically found on most sheet metal punches. It is contemplated that radius 64 is approximately 10% of sheet metal thickness t or may alternatively be 10% of thickness A. During the trimming operation, contact stresses are reduced and disbursed across radius 64 thereby increasing the number of cycles upper trimming die 56 may function prior to requiring repair.
- Groove 28 includes a first wall 66 and a second wall 68 .
- First wall 66 of groove 28 acts as an integrated die trim as upper trimming die 56 moves towards lower trimming die 54 . Fracture of minimum thickness A occurs prior to corner 58 being loaded to a significant magnitude. In this manner, upper trimming die 56 and lower trimming die 54 may be utilized for many more cycles than previously contemplated due to the formation of groove 28 .
- FIG. 4 depicts part portion 30 separated from scrap portion 32 .
- Part portion 30 includes a fractured section 70 corresponding to the minimum stock thickness portion A and wall 66 as previously defined.
- the Figure depicts a desirable edge condition without a burr protruding from surface 22 .
- groove 28 may be formed during a cold stamping operation.
- the sheet is not heated prior to the forming operation.
- the cold stamped sheet need not be heat treated but may proceed directly from a forming press to a trimming press similar to trimming press 50 previously described. It may be beneficial to incorporate the step of forming groove 28 in cold formed sheets having thicknesses greater than or equal to 3 mm. The press load required to separate a part portion from a scrap portion will be greatly reduced due to the presence of groove 28 .
- FIGS. 5 and 6 depict alternate cross-sectional constructions of groove 28 , a groove 28 a and a groove 28 b.
- FIG. 5 depicts grooves 28 and 28 a.
- Groove 28 includes a total included angle of approximately 90 ° .
- First wall 66 defines an angle “C” with a line 72 extending perpendicular to surface 22 .
- Angle C may be 45°.
- Groove 28 includes wall 68 where wall 68 forms an angle “D” with line 72 .
- Angle D may be 45°.
- line 72 may extend parallel to the direction of movement of the forming dies 14 , 16 or the trimming dies 54 , 56 . As such, line 72 may not always be perpendicular to surface 22 if the part has a three-dimensional shape.
- Groove 28 a may include a second wall 68 a that defines an angle “E” with perpendicular line 72 .
- Angle E may range from 45°-60°.
- a larger angle may facilitate movement of material from scrap portion 32 toward part portion 30 during actuation of forming press 12 .
- Material from scrap portion 32 is drawn toward the area of the die forming part portion 30 as blank 10 is being shaped within forming press 12 .
- the movement of material may be relatively small or relatively great.
- Increasing angle E may minimize wear on chisel 18 during the forming process.
- first wall 66 and second wall 68 as well as first wall 66 and second wall 68 a intersect at bottom 62 .
- FIG. 6 depicts alternate groove 28 b.
- Groove 28 b includes a first wall 66 b and a second wall 68 b intersecting a bottom wall 76 .
- Bottom wall 76 may be substantially planar as depicted in FIG. 6 or may alternatively be curvilinearly shaped. Bottom wall 76 extends substantially parallel to surface 26 .
- zone “F” having minimum thickness A positioning of formed blank 10 within trimming press 50 need be less accurate.
- edge 60 of lower trimming die 54 may be aligned to intersect anywhere along bottom wall 76 or substantially adjacent to bottom wall 76 to provide a desirable edge condition on part portion 30 .
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Abstract
A sheet metal component includes a three dimensionally shaped first surface, a three dimensionally shaped second surface opposite and extending substantially parallel to the first surface and an edge interconnecting and extending about the perimeter of the first and second shaped surfaced. The edge includes a sheared portion formed during a trimming operation and an indented portion formed during a forming operation prior to the trimming operation.
Description
- This U.S. Divisional Patent Application claims the benefit of U.S. National Stage patent application Ser. No. 12/601,616 filed Nov. 24, 2009, entitled “Integrated Die Trim And Method” which claims priority from PCT International Application No. PCT/CA2008/000985 filed May 22, 2008, entitled “Integrated Die Trim And Method” which claims the benefit of U.S. Provisional Patent Application Ser. No. 60/931,941 filed May 25, 2007, the entire disclosures of all the applications being considered part of the disclosure of this application, and hereby incorporated by reference.
- The present disclosure generally relates to sheet metal stamping tools and methods. More particularly, the present disclosure relates to defining an integrated die trim for sheet metal products.
- Stamping operations may be used to form shaped steel components. In some processes, the steel sheet is heated prior to forming a shaped blank. The shaped blank may be subsequently heat treated by a quenching operation. After the heat treatment process has been completed, the shaped blank exhibits very high mechanical strength properties. As such, subsequent forming or trimming of the hardened sheet steel blank may be challenging.
- A trimming operation may be required subsequent to the heat treatment process to further define an outer perimeter shape or create shaped apertures through the hardened steel blank. A trim die may include an upper trim steel moveable relative to a lower trim steel with the hardened steel blank positioned between the upper and lower trim steels. Due to the mechanical properties of the hardened blank, the forces imparted on the edges of the upper and lower trim steels may be great. Localized impact and shock loading may also exist. As a result of the trimming operation, premature wear or fracture of the trim steels may occur. Costly and time consuming repair or replacement of the trim steels may be required. Similar die wear and service life issues may exist when stamping and/or trimming steel sheets without previously heating and quenching the blank. The trim steels may exhibit undesirable wear even though the steel sheet has not been hardened.
- Accordingly, a sheet metal component may be constructed in accordance with the teachings of the present disclosure to include a three dimensionally shaped first surface, a three dimensionally shaped second surface opposite and extending substantially parallel to the first surface and an edge interconnecting and extending about the perimeter of the first and second shaped surfaces. The edge includes a sheared portion formed during a trimming operation and an indented portion formed during a forming operation prior to the trimming operation.
- A method of stamping a sheet metal component includes forming a steel sheet in a stamping press to include an indentation. The indentation extends from a first surface of the sheet toward a second opposite surface of the sheet. The method further includes separating a first portion of the sheet from a second portion of the sheet in a trimming press. The separating occurs by shearing through the remaining sheet material located at the indentation previously formed.
- Further areas of applicability will become apparent from the description provided herein. It should be understood that the description and specific examples are intended for purposes of illustration only and are not intended to limit the scope of the present disclosure.
- The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way.
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FIG. 1 is a perspective view of a sheet metal blank before completion of a trimming operation; -
FIG. 2 is a cross-sectional side view of a formed sheet metal blank positioned within a forming press; -
FIG. 3 is a cross-sectional side view of a stamped sheet having an integral die trim positioned with a trimming press in accordance with the teachings of the present disclosure; -
FIG. 4 is a fragmentary cross-sectional view of a part portion of a sheet metal blank separated from a scrap portion; -
FIG. 5 is a cross-sectional side view of a portion of the formed blank ofFIGS. 2 ; and -
FIG. 6 is a cross-sectional side view of another formed blank according to the teachings of the present disclosure. - The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, or uses. It should be understood that throughout the drawings, corresponding reference numerals indicate like or corresponding parts and features.
-
FIG. 1 depicts a formed, three dimensionally shaped, blank 10.Blank 10 may be formed from an alloy sheet including materials such as ultra high strength steel and martensitic steel. In one example, a boron alloy steel may be used. The steel is typically provided in thicknesses ranging from 0.8 mm to 2 mm or more. Depending on the material type and sheet thickness, a coil of material may be provided to the stamping facility. Portions of the steel sheet are fed from the coil and positioned within a blanking die. The blanking die cuts a length of material from the coil and may also define a rough outer perimeter of individual blanks to be subsequently formed. - The blank may be transferred to a furnace where it may be heated to a temperature to facilitate forming. In one example, the furnace operates at 920° C. In other instances, the blank may be heated within a forming press. In the present example, the pre-heated or non-preheated blank is transferred to a hot forming
press 12 that includes an upper formingdie 14 and a lower formingdie 16. Upper forming die 14 includes achisel 18 protruding from asurface 20.Surface 20 defines the shape of anupper surface 22 of formed blank 10. Anupper surface 24 of lower forming die 16 defines the shape of alower surface 26 of formed blank 10. - During the forming operation, upper forming die 14 and lower forming die 16 may be heated to approximately 700° C. The upper and lower forming
dies blank surfaces chisel 18 deforms blank 10 to form an indentation orgroove 28 extending inwardly fromsurface 22.Groove 28 is substantially uninterrupted and extends about the periphery of the blank 10. It should be appreciated thatgroove 28 may alternatively be formed as a series of grooves aligned with one another. Apart portion 30 is defined on one side ofgroove 28 while ascrap portion 32 is defined on the other side ofgroove 28 as shown inFIG. 1 . In some cases, the relative positions of the part portion and the scrap portion may be reversed if the other portion is the desired product. - Once the shape of formed blank 10 and
groove 28 have been defined within the formingpress 12, the formed blank 10 is quenched within the die. This may be accomplished by cooling upper forming die 14 and lower forming die 16 by any number of methods previously known. The quenching operation changes the microstructure of the steel and hardens at least portions of formed blank 10. It should be appreciated that the formed blank 10 may alternatively be quenched outside of formingpress 12. - After the quenching operation, the heat treated and formed blank 10 is transferred to a
trimming press 50. Trimmingpress 50 includes anupper pad 52, a lower trimming die 54 and an upper trimming die 56.Upper pad 52 is operable to clamp formed blank 10 against lower trimming die 54. Upper trimming die 56 is moveable relative to lower trimmingdie 54 to separatepart portion 30 fromscrap portion 32. - Lower trimming die 54 includes a
corner 58 positioned in communication withgroove 28. Formed blank 10 is positioned within trimmingpress 50 such that anedge 60 of lower trimming die 54 is substantially aligned with a bottom 62 ofgroove 28. At bottom 62, a minimum thickness “A” of formed blank 10 exists. Dimension A is defined as the distance betweensurface 26 and bottom 62. Toseparate part portion 30 fromscrap portion 32, only the minimum thickness A need be sheared in the trimming operation.Bottom 62 also defines a depth of groove “B” as the distance fromsurface 22 tobottom 62. To achieve a desirable edge condition ofpart portion 30 after separation fromscrap portion 32 and minimize press load, it may be desirable to maintain minimum stock thickness A at a range of one-third to two-thirds a stock thickness t. The shape ofgroove 28 may also be varied to extend the life of formingpress 12 and trimmingpress 50 while producing a desirable edge condition onpart portion 30. Various shapes ofgroove 28 will be described in greater detail below. - As another method of increasing trim life, upper trimming die 56 is manufactured with a
radius 64 as opposed to a sharp edge typically found on most sheet metal punches. It is contemplated thatradius 64 is approximately 10% of sheet metal thickness t or may alternatively be 10% of thickness A. During the trimming operation, contact stresses are reduced and disbursed acrossradius 64 thereby increasing the number of cycles upper trimming die 56 may function prior to requiring repair. -
Groove 28 includes afirst wall 66 and asecond wall 68.First wall 66 ofgroove 28 acts as an integrated die trim as upper trimming die 56 moves towards lower trimming die 54. Fracture of minimum thickness A occurs prior to corner 58 being loaded to a significant magnitude. In this manner, upper trimming die 56 and lower trimming die 54 may be utilized for many more cycles than previously contemplated due to the formation ofgroove 28. -
FIG. 4 depictspart portion 30 separated fromscrap portion 32.Part portion 30 includes a fracturedsection 70 corresponding to the minimum stock thickness portion A andwall 66 as previously defined. The Figure depicts a desirable edge condition without a burr protruding fromsurface 22. - While the above description relates primarily to a process including hot forming and quenching of the steel workpiece, it should be appreciated that the scope of the present disclosure also includes cold stamping and forming processes. In particular, it is contemplated that
groove 28 may be formed during a cold stamping operation. The sheet is not heated prior to the forming operation. Furthermore, the cold stamped sheet need not be heat treated but may proceed directly from a forming press to a trimming press similar to trimmingpress 50 previously described. It may be beneficial to incorporate the step of forminggroove 28 in cold formed sheets having thicknesses greater than or equal to 3 mm. The press load required to separate a part portion from a scrap portion will be greatly reduced due to the presence ofgroove 28. -
FIGS. 5 and 6 depict alternate cross-sectional constructions ofgroove 28, agroove 28 a and agroove 28 b.FIG. 5 depictsgrooves Groove 28 includes a total included angle of approximately 90° .First wall 66 defines an angle “C” with aline 72 extending perpendicular to surface 22. Angle C may be 45°.Groove 28 includeswall 68 wherewall 68 forms an angle “D” withline 72. Angle D may be 45°. It is contemplated thatline 72 may extend parallel to the direction of movement of the forming dies 14, 16 or the trimming dies 54, 56. As such,line 72 may not always be perpendicular to surface 22 if the part has a three-dimensional shape. - Because
second wall 68 is formed onscrap portion 32, it may be desirable to formgroove 28 a instead ofgroove 28.Groove 28 a may include asecond wall 68 a that defines an angle “E” withperpendicular line 72. Angle E may range from 45°-60°. A larger angle may facilitate movement of material fromscrap portion 32 towardpart portion 30 during actuation of formingpress 12. Material fromscrap portion 32 is drawn toward the area of the die formingpart portion 30 as blank 10 is being shaped within formingpress 12. Depending on the depth of draw, the movement of material may be relatively small or relatively great. Increasing angle E may minimize wear onchisel 18 during the forming process. In the embodiment inFIG. 5 ,first wall 66 andsecond wall 68 as well asfirst wall 66 andsecond wall 68 a intersect atbottom 62. -
FIG. 6 depictsalternate groove 28 b.Groove 28 b includes afirst wall 66 b and asecond wall 68 b intersecting abottom wall 76.Bottom wall 76 may be substantially planar as depicted inFIG. 6 or may alternatively be curvilinearly shaped.Bottom wall 76 extends substantially parallel to surface 26. By including an increased zone “F” having minimum thickness A, positioning of formed blank 10 within trimmingpress 50 need be less accurate. In particular, edge 60 of lower trimming die 54 may be aligned to intersect anywhere alongbottom wall 76 or substantially adjacent tobottom wall 76 to provide a desirable edge condition onpart portion 30. - Furthermore, the foregoing discussion discloses and describes merely exemplary embodiments of the present disclosure. One skilled in the art will readily recognize from such discussion, and from the accompanying drawings and claims, that various changes, modifications and variations may be made therein without departing from the spirit and scope of the disclosure as defined in the following claims.
Claims (5)
1. A sheet metal component, comprising:
a three dimensionally shaped first surface;
a three dimensionally shaped second surface opposite to the first surface; and
an edge interconnecting and extending about the perimeter of the first and second shaped surfaces, the edge including a sheared portion formed during a trimming operation and an indented portion formed during a forming operation prior to the trimming operation.
2. The component of claim 1 wherein the sheared portion is positioned immediately adjacent to the indented portion.
3. The component of claim 2 wherein the indented portion includes a cross-section having a substantially planar wall extending at an angle of substantially forty-five degrees from the first surface.
4. The component of claim 3 wherein the indented portion includes an indentation bottom surface extending substantially parallel to the first surface and intersecting the planar wall.
5. The component of claim 4 wherein the indentation bottom surface intersects the sheared portion.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US14/565,884 US20150093592A1 (en) | 2007-05-25 | 2014-12-10 | Integrated Die Trim And Method |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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US93194107P | 2007-05-25 | 2007-05-25 | |
PCT/CA2008/000985 WO2008144893A1 (en) | 2007-05-25 | 2008-05-23 | Integrated die trim and method |
US60161609A | 2009-11-24 | 2009-11-24 | |
US14/565,884 US20150093592A1 (en) | 2007-05-25 | 2014-12-10 | Integrated Die Trim And Method |
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US12/601,616 Division US8919169B2 (en) | 2007-05-25 | 2008-05-23 | Integrated die trim and method |
PCT/CA2008/000985 Division WO2008144893A1 (en) | 2007-05-25 | 2008-05-23 | Integrated die trim and method |
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US20150093592A1 true US20150093592A1 (en) | 2015-04-02 |
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US14/565,884 Abandoned US20150093592A1 (en) | 2007-05-25 | 2014-12-10 | Integrated Die Trim And Method |
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US12/601,616 Active 2030-05-22 US8919169B2 (en) | 2007-05-25 | 2008-05-23 | Integrated die trim and method |
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EP (2) | EP2155413B1 (en) |
KR (1) | KR101544223B1 (en) |
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CA (1) | CA2688043C (en) |
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DE102013109616A1 (en) * | 2013-09-03 | 2015-03-05 | Thyssenkrupp Steel Europe Ag | Semi-finished product and method for producing a three-dimensionally shaped hybrid component in the metal / plastic composite and use of such a semi-finished product |
CN104588479B (en) * | 2015-02-10 | 2016-06-22 | 苏黎 | A kind of shaving die of alloying metal blank plate |
CN104550419B (en) * | 2015-02-10 | 2016-06-22 | 苏黎 | A kind of Trimming Die of alloy blank plate |
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Also Published As
Publication number | Publication date |
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US20100167080A1 (en) | 2010-07-01 |
EP2944394A1 (en) | 2015-11-18 |
CA2688043A1 (en) | 2008-12-04 |
EP2944394B1 (en) | 2020-11-18 |
CN101678429B (en) | 2016-07-06 |
EP2155413A1 (en) | 2010-02-24 |
CN106077210A (en) | 2016-11-09 |
MX2009011157A (en) | 2009-11-02 |
KR20100017283A (en) | 2010-02-16 |
CA2688043C (en) | 2017-02-07 |
CN101678429A (en) | 2010-03-24 |
EP2155413A4 (en) | 2013-09-11 |
ES2850150T3 (en) | 2021-08-25 |
US8919169B2 (en) | 2014-12-30 |
KR101544223B1 (en) | 2015-08-12 |
WO2008144893A1 (en) | 2008-12-04 |
EP2155413B1 (en) | 2015-08-12 |
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