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hemproduct(门包边设计).pdf

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HEMPRODUCT 门包边 设计
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Table Of Contents 3.0 Product 3.1 Introduction Of General Press And Die Requirements 3.2 Types Of Hems 3.2.1 Modified Flat 3.2.2 Flat 3.2.3 Rope 3.2.4 Partial 3.2.5 Downstanding 3.3 Product Design Requirements (Steel) 3.3.1 Typical Flat Hem Sections for Steel Closure Panels 3.3.1.1 Flat Hem Straight Section (Steel) 3.3.1.2 Flat Hem Concave (stretch) Section (Steel) 3.3.1.3 Flat Hem Convex (shrink) Section (Steel) 3.3.1.4 Flat Hem Character Line Section = 40 mm Width (Steel) 3.3.1.6 Flat Hem Corner Section (Steel) 3.3.1.7 Flat Hem Laser Weld Joint Section (Steel) 3.3.2 Typical Rope Hem Sections for Steel Closure Panels 3.3.2.1 Rope Hem Radius Requirement 3.3.2.2 Rope Hem Straight Section (Steel) 3.3.3 Decklid - Single Piece Outer (Steel) 3.3.4 Door (Steel) 3.3.4.1 Door - Cargo (Steel) 3.3.4.2 Door, Front - Door-Into-Roof (Steel) 3.3.4.3 Door, Rear - Door-into-Roof (Steel) 3.3.4.4 Door, Front - Frame-Under-Glass (Steel) 3.3.4.5 Door, Rear - Frame-Under-Glass (Steel) 3.3.4.6 Door, Front - Headerless (Steel) 3.3.4.7 Door, Rear - Headerless (Steel) 3.3.4.8 Door - Sliding (Steel) 3.3.5 Endgate (Steel) 3.3.6 Hood (Steel) 3.3.6.1 Hood (Steel) 3.3.6.2 Hood - Clamshell (Steel) 3.3.6.3 Hood - With Headlight Cutouts (Steel) 3.3.7 Liftgate (Steel) 3.3.8 Rear Access Panel (Steel) 3.3.9 Roof (Steel) 3.3.9.1 Roof - 2-Sided Hem (Steel) 3.3.9.2 Roof - 4-Sided Hem (Steel) 3.4 Product Design Requirements (Stamped Aluminum) 3.1.4 Typical Rope Hem Sections for Aluminum Closure Panels 3.4.1.1 Rope He m Straight Section (Aluminum)GM North American Hemmed Panel Standard Release Date: November 10, 1999 Revision Date: Questions/Comments Contact: Paul Tyckoski 810-947-0419 (8-227-0419) 3.0 Product 3.1 Introduction For General Press And Die Requirements The purpose of this report is to attempt to understand, summarize, and explain all of the hemming recommendations that have been assimilated by General Motors. Many of these recommendations can be generalized across vehicle platforms. All sketches in this document are not to scale and do not represent a specific product design. They are used to express concepts and ideas only. 3.1.1 Hem Press and Die Basics Understanding basically how the hem press works may allow significant cost savings through design for manufacturing. The outer panel is located up/down and fore/aft for side closures (cross car and fore/aft for front and rear closures) by several small blades (usually 2 per side). Relief for the locator blades must be provided in the lower die, the pre hem steels, and the final hem punch. Sometimes a block will be used in the handle pocket to better locate the outer panel. The cross car for side closures (up/down for front and rear closures) location is controlled by the lower die. As the ram on the press is lowered, the inner panel is located fore/aft and up/down for side closures (cross car and fore/aft for front and rear closures) by gauge pins in the spider. The gauge pins are slightly undersized to the holes. The hole surfaces should be perpendicular to the pins. A full periphery blade holds the inner to the outer, while blocks locate the 'S' surfaces on the inner panel, and ck's correct for inner panel springback.s s gage pins to locate inner ck ck lower die blades to locate outer 2 per side ~ The hem press generally uses a cam operation for pre hem and a full periphery anvil for final hem. Individual product design may require the final hem to be a cam operation. The target maximum for direct hemming is 60° (70° is the highest ever achieved). If the product design requires the panel to be tipped too far, a cam is used for the final hem.GM North American Hemmed Panel Standard Release Date: November 10, 1999 Revision Date: Questions/Comments Contact: Paul Tyckoski 810-947-0419 (8-227-0419) p r e s s 60° max cam direction 30° 40 mm. Refer to European Council Directive 74/483/EEC for complete specification. hem radius (R) windshield gap 100 mm diameter sphere (R) requirement only in area which can be contacted by the sphere 3.3.2.2 Rope Hem Straight Section (Steel)GM North American Hemmed Panel Standard Release Date : November 10, 1999 Revision Date: Questions/Comments Contact : Paul Tyckoski 810-947-0419 (8-227-0419) 3.3.3 Decklid – Single Piece Outer (Steel) LINE X Y Straight Flange Y Cam Flange UPSTANDING FLANGE HEM PRESS BASE SHOW SURFACE OF PART TESCO ENGINEERING 8/27/99 ANGLE SHOWN IS PERPENDICULAR TO HEMMED EDGE (PART SHOWN IS IN INVERTED POSITION) STEEL DECKLID (SINGLE PIECE OUTER) E-F F-A NA < 105 C-D D-E < 105 A-B B-C = 93 < 95 NA < 105 < 105 = 93 < 95 = 93 = 93 < 105 < 105 < 105 < 105 NA NA CAM FLANGE CAM FLANGE B A C D E F DIRECT FLANGE DIRECT FLANGE DIRECT FLANGE DIRECT FLANGE DECKLID.DWG NOTE: REVIEW FLANGE CLEARANCE CONDITIONS FOR MARRIAGE OF INNER TO OUTER. FLANGE CONDITIONS MUST ALLOW MARRIAGE OF INNER TO OUTER ALL FLANGE ANGLES INCLUDE 3 ° SPRING BACK NOTE: Y XGM North American Hemmed Panel Standard Release Date : November 10, 1999 Revision Date: Questions/Comments Contact : Paul Tyckoski 810-947-0419 (8-227-0419) 3.3.4 Door (Steel) 3.3.4.1 Door – Cargo (Steel) LINE X Y Straight Flange Y Cam Flange TESCO ENGINEERING 8/27/99 ANGLE SHOWN IS PERPENDICULAR TO HEMMED EDGE (PART SHOWN IS IN INVERTED POSITION) STEEL - CARGO DOORS G-H H-E = 93 < 95 NA < 90 < 105 E-F F-G = 93 < 95 NA < 90 < 105 C-D D-A = 93 < 95 NA < 105 < 105 A-B B-C = 93 < 95 NA < 90 < 105 < 105 < 105 < 105 < 105 DIRECT OR CAM FLANGE DIRECT OR CAM FLANGE CAM FLANGE CAM FLANGE DIRECT OR DIRECT OR DIRECT FLANGE FLANGE DIRECT FLANGE DIRECT DIRECT FLANGE F G C B D A H E INNER TO OUTER. ALLOW MARRIAGE OF FLANGE CONDITIONS MUST OF INNER TO OUTER. CONDITIONS FOR MARRIAGE REVIEW FLANGE CLEARANCE NOTE: ALL FLANGE ANGLES INCLUDE 3° SPRINGBACK CARGODR.dwg OR NO HEM X HEM PRESS BASE Y SHOW SURFACE OF PART UPSTANDING FLANGEGM North American Hemmed Panel Standard Release Date : November 10, 1999 Revision Date: Questions/Comments Contact : Paul Tyckoski 810-947-0419 (8-227-0419) 3.3.4.2 Door, Front – Door-Into-Roof (Steel) LINE X Y Straight Flange Y Cam Flange TESCO ENGINEERING 8/27/99 ANGLE SHOWN IS PERPENDICULAR TO HEMMED EDGE (PART SHOWN IS IN INVERTED POSITION) STEEL FULL FRONT DOOR C-D D-A = 93 < 95 NA < 105 < 105 A-B B-C = 93 < 80 NA < 80 NA < 105 < 105 B C D A DIRECT FLANGE DIRECT FLANGE DIRECT OR CAM FLANGE CAM FLANGE INCLUDE 3 ° SPRING BACK ALLOW MARRIAGE OF ALL FLANGE ANGLES FLANGE CONDITIONS MUST CONDITIONS FOR MARRIAGE REVIEW FLANGE CLEARANCE INNER TO OUTER OF INNER TO OUTER. NOTE: NOTE: FRDOOR2.DWG NO HEM INSIDE WINDOW X HEM PRESS BASE Y SHOW SURFACE OF PART UPSTANDING FLANGEGM North American Hemmed Panel Standard Release Date : November 10, 1999 Revision Date: Questions/Comments Contact : Paul Tyckoski 810-947-0419 (8-227-0419) 3.3.4.3 Door, Rear – Door-Into-Roof (Steel) LINE X Y Straight Flange Y Cam Flange TESCO ENGINEERING 8/27/99 ANGLE SHOWN IS PERPENDICULAR TO HEMMED EDGE (PART SHOWN IS IN INVERTED POSITION) STEEL - FULL DOOR REAR E-A < 95 NA < 105 C-D D-E = 93 < 105 NA < 105 A-B B-C < 80 < 80 NA < 93 = 93 < 105 NA < 90 A B C D E CAM FLANGE DIRECT OR CAM FLANGE DIRECT FLANGE FLANGE DIRECT CAM FLANGE NOTE: ALL FLANGE ANGLES INCLUDE 3° SPRINGBACK RRDOOR2.dwg NO HEM INSIDE WINDOW INNER TO OUTER. ALLOW MARRIAGE OF FLANGE CONDITIONS MUST OF INNER TO OUTER. CONDITIONS FOR MARRIAGE REVIEW FLANGE CLEARANCE X HEM PRESS BASE Y SHOW SURFACE OF PART UPSTANDING FLANGEGM North American Hemmed Panel Standard Release Date : November 10, 1999 Revision Date: Questions/Comments Contact : Paul Tyckoski 810-947-0419 (8-227-0419) 3.3.4.4 Door, Front – Frame-Under-Glass (Steel) LINE X Y Straight Flange Y Cam Flange TESCO ENGINEERING 8/27/99 ANGLE SHOWN IS PERPENDICULAR TO HEMMED EDGE (PART SHOWN IS IN INVERTED POSITION) STEEL FRAME UNDER GLASS FRONT DOOR E-A < 95 < 105 C-D D-E = 93 NA < 105 < 105 = 93 NA < 105 DIRECT OR CAM FLANGE D E C B A NO HEM NO HEM DIRECT FLANGE FLANGE DIRECT FRDOOR3.DWG NO HEM INSIDE INCLUDE 3 ° SPRING BACK ALLOW MARRIAGE OF ALL FLANGE ANGLES FLANGE CONDITIONS MUST CONDITIONS FOR MARRIAGE REVIEW FLANGE CLEARANCE INNER TO OUTER OF INNER TO OUTER. NOTE: NOTE: WINDOW X HEM PRESS BASE Y SHOW SURFACE OF PART UPSTANDING FLANGEGM North American Hemmed Panel Standard Release Date : November 10, 1999 Revision Date: Questions/Comments Contact : Paul Tyckoski 810-947-0419 (8-227-0419) 3.3.4.5 Door, Rear – Frame-Under-Glass (Steel) LINE X Y Straight Flange Y Cam Flange TESCO ENGINEERING 8/27/99 ANGLE SHOWN IS PERPENDICULAR TO HEMMED EDGE (PART SHOWN IS IN INVERTED POSITION) STEEL - FRAME UNDER GLASS REAR DOOR E-F F-G = 93 < 95 NA < 105 < 105 C-D D-E = 93 NA NA < 105 < 95 < 105 < 105 NO HEM DIRECT OR CAM FLANGE B A NO HEM C D E F G NO HEM DIRECT FLANGE FLANGE DIRECT DIRECT FLANGE NOTE: ALL FLANGE ANGLES INCLUDE 3° SPRINGBACK RRDOOR3.dwg REVIEW FLANGE CLEARANCE CONDITIONS FOR MARRIAGE FLANGE CONDITIONS MUST OF INNER TO OUTER. ALLOW MARRIAGE OF INNER TO OUTER. NO HEM INSIDE WINDOW X HEM PRESS BASE Y SHOW SURFACE OF PART UPSTANDING FLANGE
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