Large-scale dies (general)/stamping dies (general) General construction specifications
Group:
Large-scale dies (general)/stamping dies (general) General construction specifications| Group: |
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| Large-scale dies (general)/stamping dies (general) General construction specifications |
Press die standard for aluminum sheet metals 铝板的冲压模具标准
Issue date: 2018-11 发行时间:2018-11
"Group:
Large-scale dies (general)/stamping dies (general) General construction specifications" "Section:
LSD 2.2.1
PD 3.2.1" "Standards sheet no.
F0 81050055497" "Page:
1 of 12"
Title: Press die standard Press die standard for aluminum sheet metals Issue date: 2018-11| Group: <br> Large-scale dies (general)/stamping dies (general) General construction specifications | Section: <br> LSD 2.2.1 <br> PD 3.2.1 | Standards sheet no. <br> F0 81050055497 | Page: <br> 1 of 12 |
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| Title: Press die standard | Press die standard for aluminum sheet metals | | Issue date: 2018-11 |
Contents: 内容:
This standard contains specific requirements for parts pressed from aluminum, which supplement the press die standards and series specifications that are in effect. 本标准包含对铝压制零件的具体要求,这些要求补充了现行的冲压模具标准和系列规范。
Table of contents: 目录:
General requirements for production using aluminum 使用铝生产的一般要求
Methodological requirements 方法要求
Page 2 第 2 页
Page 3 第 3 页
Page 4 第 4 页
3.2 Drawing radii 3.2 绘制半径
3.3 Die clearance 3.3 芯片间隙
3.4 Draw beads 3.4 绘制珠子
3.5 General information about drawing 3.5 有关绘图的一般信息
4. Specific requirements for cutting 4. 切割的具体要求
4.1 Blanking 4.1 消隐
4.2 Basic requirements and additional information to prevent the formation of swar 4.2 防止 swar 形成的基本要求和附加信息
4.3 Cutting geometry 4.3 切割几何形状
4.3.1 Cutting clearance and immersion depth 4.3.1 切割间隙和浸入深度
4.3.2 Female dies for inner cuts 4.3.2 用于内切的内模
4.3.3 Pressure pad design 4.3.3 压力垫设计
4.3.4 Cutting surface design 4.3.4 切割面设计
4.3.5 Materials and surface treatments of cutting elements 4.3.5 切削元件的材料和表面处理
4.3.6 Procedures to maintain the cutting clearance 4.3.6 保持切割间隙的程序
4.3.7 Heat treatment 4.3.7 热处理
5. Specific requirements for edge bending of folding flanges (in accordance with the “Exterior precision” I joint bench): 5、折叠法兰边缘弯曲的具体要求(根据《外显精度》I 关节工作台):
Large-scale dies (general)/stamping dies (general)
General construction specifications
Group:
Large-scale dies (general)/stamping dies (general)
General construction specifications| Group: |
| :--- |
| Large-scale dies (general)/stamping dies (general) |
| General construction specifications |
"Group:
Large-scale dies (general)/stamping dies (general)
General construction specifications" "Section:
LSD 2.2.1" "Standards sheet no.:
F0 81050 055497" "Page:
2 of 12"
Press die standard for aluminum sheet metals "Issue date:
2018-11" | Group: <br> Large-scale dies (general)/stamping dies (general) <br> General construction specifications | Section: <br> LSD 2.2.1 | Standards sheet no.: <br> F0 81050 055497 | Page: <br> 2 of 12 |
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| Press die standard for aluminum sheet metals | Issue date: <br> 2018-11 | | |
1. General requirements for production using aluminum: 1. 使用铝材生产的一般要求:
This section describes the requirements that must be taken into consideration for each part in all operations and in the entire production process. Requirements for the individual operations will be described in the sections that follow. 本节介绍在所有操作和整个生产过程中必须考虑每个部件的要求。以下各节将介绍各个操作的要求。
1.1 Requirements arising for aluminum's properties 1.1 对铝性能的要求
1.1.1 Lower hardness: 1.1.1 较低的硬度:
No relative movement between the sheet metal part and die surfaces (except at functional surfaces). 钣金零件和模具表面之间没有相对移动(功能表面除外)。
The sheet metal cannot butt against edges. 钣金不能与边缘对接。
Use plastic lifting rollers (no steel rollers) for blanking dies. 冲裁模具使用塑料升降辊(无钢辊)。
Avoid unnecessary contact surfaces (e. g. pressure pad surfaces, stripper surfaces and opposing surfaces should be kept as small as possible) (e.g. rubber stripper during blanking). 避免不必要的接触面(例如,压力垫表面、脱模器表面和相对表面应尽可能小)(例如,冲裁过程中的橡胶脱模器)。
Use only the largest pressure pad area necessary (also refer to measures during cutting). 仅使用所需的最大压力垫区域(另请参阅切割过程中的措施)。
Prevent particles from entering the die (clean conveyor and die carefully). 防止颗粒进入模具(小心清洁输送机和模具)。
Minimize the formation of particles (also refer to measures during cutting). 尽量减少颗粒的形成(另请参阅切割过程中的措施)。
Tryout is more complex/good contact pattern to avoid indentations. 试模是更复杂/良好的接触模式,以避免压痕。
No surfaces treated by cavity type EDM (high roughness and surface damage), construct die in a different manner 无腔体 EDM 处理的表面(高粗糙度和表面损伤),以不同的方式构建模具
Wire EDM is permitted 允许电火花线切割
Polishing the functional surfaces: see next section. 抛光功能表面:参见下一节。
Take increased deflection of the blank and part into account. 考虑毛坯和零件的增加挠度。
Bending radii see standard sheet F0 81050055655 弯曲半径见标准板材 F0 81050055655
1.1.2 High tendency to adhere to die material 1.1.2 极易粘附在模具材料上
Gravity cannot be utilized to the same extent as it can with steel sheet metal; scrap must reliably slide away, larger chute angles; roller conveyors, etc. 重力的利用程度不能与钢板金属相同;废料必须可靠地滑走,溜槽角度更大;滚筒输送机等
Air circulation causes very small chips from cutting to disperse easily into the die; provide pressure compensation in the die; large openings in castings 空气循环使非常小的切屑在切割时很容易分散到模具中;在模具中提供压力补偿;铸件中的大开口
组: 大型模具(一般)/冲压模具(一般) 一般施工规格
Group:
Large-scale dies (general)/stamping dies (general)
General construction specifications
Group:
Large-scale dies (general)/stamping dies (general)
General construction specifications| Group: |
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| Large-scale dies (general)/stamping dies (general) |
| General construction specifications |
Avoid formation of folds or waves when the blank holder closes and when the punch is applied. 避免在压边关闭和施加冲头时形成褶皱或波浪。
Maximum cutting angle 15^(@)15^{\circ}, otherwise use a slide element. 最大切割角度 15^(@)15^{\circ} ,否则使用滑动元件。
Areas of components that will be folded or hemmed in post-forming operations should be stretched only slightly in the drawing stage so that they have sufficient elastic reserves in the following operations. 在成型后操作中将被折叠或包边的部件区域应在拉伸阶段仅略微拉伸,以便它们在后续操作中具有足够的弹性储备。
Take increased springback into account (e.g. it is twice as high for sheet metal material AIMg0.4Si1.2 as it is for CR3). 考虑到增加的回弹(例如,钣金材料 AIMg0.4Si1.2 的回弹是 CR3 的两倍)。
For further requirements for the methodical design, see 4.) Specific requirements for cutting: Table item 4.2 有关方法设计的进一步要求,请参阅 4.)切割的具体要求:表项目 4.2
3. Specific requirements for drawing: 3、图纸的具体要求:
The design of drawn parts and of draw dies for processing aluminum alloys has an especially large influence on the results of the forming due to the lower forming limits when compared to conventional steel sheet metal materials. Important components of die design for the production of aluminum car body parts are: 与传统的钢制钣金材料相比,由于成型极限较低,因此用于加工铝合金的拉拔件和拉深模的设计对成型结果的影响特别大。用于生产铝制车身零件的模具设计的重要组成部分是:
a. The design and dimensioning of female drawing dies and punch radii. 一个。内螺纹拉丝模具和冲头半径的设计和尺寸标注。
b. Dimensioning of the die clearance. b.模具间隙的尺寸。
c. The design of the draw beads. c. 拉珠的设计。
d. The basic materials used in the dies, die coatings and the quality of the die surface. d. 模具中使用的基本材料、模具涂层和模具表面的质量。
The values shown in the table below, beginning with item 3.2 to 3.4, are guidelines. Due to the specific geometries of the parts, decisions must be made on a case-by-case basis. 下表中(从第 3.2 项到第 3.4 项)中显示的值是指导原则。由于零件的特定几何形状,必须根据具体情况做出决定。
3.1 Materials, heat treatment and surface treatment 3.1 材料、热处理和表面处理