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## calculation formula and actual application case analysis -let mathematics crowns for manufacturing
### Foreword
Pouring parts play a vital role in the field of modern manufacturing.Small to home appliance parts, as large as the car body, and the stamping process is everything.However, to achieve efficient production ** and ** precise manufacturing **, the relevant calculations of stamping parts are particularly important.This article will take you into this precision manufacturing world through analysis of the formula of stamping parts, combined with actual application cases.
### Basic calculation formula
To grasp the calculation of the stamping parts, we first need to understand the basic concepts involved in the stamping process: ** Discovery **, ** bending force ** and ** unfolding length **.The accurate calculation of these parameters is directly related to the quality of stamping parts and the smooth progress of production.
1. ** Correcting calculation formula **
Discovering is an important basis for choosing the tonnage of the pressure machine.Calculation formulas \ (f \) are as follows:
\ [[
F = L \ Times T \ Times \ TAU
\]
in:
– \ (l \) is the perimeter (mm) of the ruling component (mm)
– \ (t \) is the material thickness (mm)
– \ (\ Taiwan \) is the shear strength of the material (n/mm²)
In actual production, we need to appropriately enlarge the calculation results to ensure that the equipment tolerance has sufficient safety balance.
** Case analysis: **
In the process of manufacturing a round pad, the diameter of the pads is 100mm, the material thickness is 2mm, and the shear strength is 400 n/mm².According to the formula:
\ [[
F = \ Pi \ Times 100 \ Times 2 \ Times 400 = 251,200 \ text {n} = 251.2 \ Text {kn}
\]
Therefore, choosing a 300kn pressure machine can meet the demand for this breach.
2. ** Bending force calculation formula **
Bending force is the force that the pressure machine needs during bending.Its calculation formula is:
\ [[
F = 1.3 \ Times L \ Times T^2 \ Times \ Sigma_b
\]
in:
– \ (l \) is the length of the bend part (mm)
– \ (t \) is the material thickness (mm)
– \ (\ sigma_b \) is the tensile strength of the material (n/mm²)
1.3 in this formula is an experience coefficient that covers some possible deviations and additional loads in some operations.
** Case analysis: **
When a stainless steel bracket with a length of 200mm and a thickness of 1.5mm, the tensile strength of the material is 500 n/mm².According to the formula:
\ [[
F = 1.3 \ Times 200 \ Times (1.5)^2 \ Times 500 = 292,500 \ Text {n} = 292.5 \ text {kn}
\]
Therefore, a pressure machine of about 300kn is required to meet the requirements of bending.
3. ** Expand length Calculation Formula **
The expansion length refers to the length required by the metal plate before bend.The calculation formula of the expansion length is:
\ [[
L = l_1 + l_2 – \ alpha \ times r
\]
in:
– \ (l_1 \) and \ (l_2 \) are the length on both sides of the bend
– \ (r \) is the radius of the bend
– \ (\ alpha \) is the curved correction coefficient, which varies from the material and angle
** Case analysis: **
When making a 90 -degree right -angle sheet metal part, the length of the two sections is 50mm, the inner bending radius is 5mm, and the correction coefficient of bending is 0.4.According to the formula:
\ [[
L = 50 + 50-0.4 \ times 5 = 98 \ text {mm}
\]
At this time, the original length of the metal plate should be set to 98mm to ensure that the bending finished product meets the design requirements.
### Actual application and challenge
Understanding the calculation formula of rushing parts is the basis of ensuring ** efficient production ** and ** quality control **.In practical applications, not only the ability to consider the equipment, but also the characteristics of the material, the accuracy of the mold, and environmental factors.For example, temperature changes, material fatigue, etc. may affect the actual stamping effect, so online monitoring and real -time adjustment are becoming more and more important.
Modern factories often use ** computer -assisted design ** (CAD) and ** computer -assisted manufacturing ** (CAM) systems to greatly shorten the design cycle and improve the manufacturing accuracy by accurate simulation and simulation.This method can not only optimize the calculations in the stamping process, but also simulate different working conditions, foresee problems in advance and solve it.
### Summarize
The calculation formula of stamping parts is an indispensable part of the stamping process.Through accurate calculations, we can reasonably choose equipment, optimize design, improve quality, and finally realize ** efficient production ** and ** resources to save **.This article combines some simple cases, hoping to provide some practical references for relevant practitioners.The world -wide and profound world of stamping technology, constantly learning and practice will help us go more stable and farther on this road.