What is stamping?
From the content of stamping:
(3) Stamping is Done by Equipment and Molds. It Needs Three Elements: Punch (EQUIPMENT), MOLD, and RAW MATERIALS.
Metal Stamping Characteristics and Applications
(1) High Productivity, Simple Operation, and Easy Mechanization and Automation.
-Shell Deep-Drawing Parts, Are Available. (5) Parts with Light Weight, Good Rigidity and High Stringth can be object.
(6) No heating is required, Energy Can Be Saved, and the Surface Quality is good.
.From Fine Electronic Components, Instrument Pointers to Heavy-Duty Car Covers and Girders, as well as Aircraft Skins, Stamping is required.disadvantages of stamping
The MOLD ManuFacturing Cycle is Long and the Cost is High.
However, with the Advent of Advanced Mold Processing Technology and NON-TRADITITIONAL MOLD MILD MIALILS, this shortcoming can be gradually overcomes.
Countries attach to the development of molds.
Industry.
.Classify by deformation propieSsePities ProcessForming Process (1) Separation ProcessDuring Stamping, The Material to Be PROCESSED IS DEFRED BY EXTERNAL FORCE.
ETC.THE Separation Process is Indicated as Below:
Separation OCCURS But CHANGE The Shape of the Space.table 1-1 Separation Process
ONLY PLASTICALLLLLLEMS, Thus Obtaining Parts of Certain Shape and Size.
The Forming Process Mainly Includes Bending, Deep Drawing, Turning, Shrinking, Buling, ETC.THE FORMING Process is Shown As Follows:
ONLY CHANGE The Shape of the Blank, No Separation Occurs.table 1-2 Forming Process
1.3.1 Process Requirements for Stamping Materials1.stamping Forming Performancestamping Forming Performance Refers to the Ability to Adapt to the Stamping PROCESS.
Bar.Thus, there is a forming limit, which is divided into an overallial forming limit and a local forming limit. The Higher they the forming limit, the better the present forming performance.
Press Forming Process.
. (1) Direct Test Methodlike Cone Cup Test (GB/T 15825.6-2008)
(2) Indirect Test Methodsuch as tensile test of low carbon Steel, ETC.
Mechanical Indicators Affecting Press Forming Properties
(1) TOTAL ELONGATION Δ and ΔbΔ is good → Allows for Large Plastic Deformation (2) Yield Ratio σs /σb
σs/σb is Small → Good Crack Resistance, Shape Fixing, and Good Moldability (3) Modulus of Elastic Elastic Modulus E → Good Shape
(4) Hardening index nn is laarge → not easy to crack (5) Plastic strain rate γ
γ = εb /εt is Big → Good Resistance to Cracking (6) Plastic Strain Specific Anisotropy Coefficientē (γ0 +γ90 – 2 γ) /2 is Big → The More Different the ANISOTROTrop
Cutting Methodsa.Common Stamping Materialsmetal Sheet: Ferrous Metal; Non-Ferrous MetalNon-Metalic Sheet: Rubber Board, Rubber Sheet
Metal Sheet Specifications: Steel Strip, Steel Plate, Slit Steel Strip, ETC.
Multiples of 10mm.
Stamping Material Blanking Method (1) Shearing Machine Cutting
(2) DISC Shearing
(3) Other Cutting Machinesma Cutterplasma Cutting MachineHIGHIGH PRESSURE WETER Cutting Machinewire Edm MachineElectric Punching, ETC.SELECTION Princife OF Stamping Equipment:
to the number of connecting Rods, there are single points (one connecting rod) Press, two points (Two Connecting Rods) Press, Four Points (Four Connecting Rods) Press, ETC. ETC.
Working Principle and Main Components of Crank Press (1) Working Mechanism
Motor, Belt, Flywhel, Gear, ETC. (3) Operating SystemAir Distribution System, Clutches, Brakes, Electrical Control Boxes, ETC.
(4) SUPPORTING PARTSBODY: Open, Closed (5) Auxiliary System
Pneumatic system, lubrication system (6) Attachment
Press Model and Technical Parameters (1) Model1) Type:
of the Pressworkbench Board and Slider Bottom Sizetthroat DEPTH CMOLD HOLE SIZE
main strain starts:
9 Types of Principal Stress:
Work Hardening Lawunload Elastic Rawlawlaw of Least Residewlassic Deformation Volume Invariance Lawnow, Let ’s Dive Into the Follow Four Diffeterent Staction PRocing PRocing PROCENTSS
Metal Stamping and Die Design: BlankingMetal Stamping and Die Design: BendingMetal Stamping Die Stamping and Die Design: DEEP DRAWINGMETAL Stamping