Stamping
Parts:
The processing method for stamping and
forging are plastic processing (or pressure processing), forging stamping blank
collectively. Is hot-rolled and cold-rolled steel sheet and strip. The world of
steel, 60 ~ 70% is the plate, mostly made by stamping products. Automobile
body, chassis, tank, radiator, boiler drum, vessel shell, electric machine,
electric iron core silicon steel sheet are stamping processing. Instruments,
household appliances, bicycles, office machinery, household utensils and other
products, there are a large number of Stamping Parts stamping. Is powered by
conventional or special punching equipment, make sheet metal in the mold
directly affected by the deformation force and deformation, thus A certain
shape, size and performance of the product parts production technology. The
sheet metal, mold and equipment are the three elements of stamping. Temperature
divided by stamping hot stamping and cold stamping. The former is suitable for
high deformation resistance, sheet metal plasticity is poor; the latter was
carried out at room temperature, is commonly used in stamping method the sheet
metal plastic processing. It is (or pressure processing) one of the main
methods, but also forming part of materials engineering. Stamping mold called
stamping die, or die. The die is the material (metal or non-metal) batch
processing into the special tool stamping. Die is of vital importance in the in
the press, did not meet the requirements of the die, it is difficult to carry
out production batch stamping die; no advanced, advanced stamping process can
not be achieved. The stamping process and die, stamping equipment and stamping
materials to constitute three stamping processing Only when they combine with
each other can they get the stamping parts.
WHY
Stamping:
Stamping parts and castings, forgings, a
thin, uniform, light, strong character. Stamping can be produced from other
methods is difficult to manufacture with stiffeners, stamping parts stamping
rib, rolling or burring of the workpiece, to improve its rigidity. Because of
the use of precision molds, workpiece precision, and high repetition accuracy,
specifications, can punch a hole nest, boss. Cold stamping generally no longer
cutting machining, or only a small amount of cutting. The hot stamping
precision and surface state below the cold stamping, but still better than the
casting, forging, machining less.
(1) Stamping processing is of high
production efficiency, convenient operation, easy to realize mechanization and
automation. This is because the stamping dies and stamping equipment rely on to
complete the processing, ordinary press trips per minute up to dozens of times,
high pressure per minute up to hundreds or even thousands of times, and each
press stroke you may get a red piece.
(2) The stamping die ensure the dimension
and shape precision stamping parts, and generally do not damage the surface
quality of stamping, and die life is generally longer, so the stamping quality,
good interchangeability, "as like as two peas" feature.
(3) Stamping can press the processing size
range is large, complex shape parts, such as a small clock stopwatch, large car
rails, covering parts, stamping and material hardening effect of cold
deformation, punching strength and stiffness are higher..
(4) Stamping generally without cutting
scrap generated, material consumption is less, and no other heating equipment,
which is a kind of material saving, energy saving and processing, lower the
cost of stamping parts.
Category:
Stamping is mainly according to the process
of classification, can be divided into separation process and the forming
process of two categories. The separation process also known as blanking, its
purpose is to make the stamping parts along the contour line must be separated
from the sheet, and guarantee the quality of the separation section (Table 1).
The forming process is designed to make sheet metal in broken slab under the
condition of plastic deformation, the workpiece into the required shape and
size. In the actual production, often a variety of integrated process applied
to a workpiece. The blanking, bending, shear, tensile, bulging, spinning,
correction is the main stamping process of several.
Mainly speaking,based on the three
different material,we can make steel stamping farts,copper alloy stamping parts
and aluminium alloy stamping parts.
Stamping Parts Stamping Parts,Steel Stamping,Copper Stamping,Aluminium Stamping VESTA Motoring Ltd , https://www.vesta-industry.com
On June 22, the microblogging of the University of Science and Technology of China revealed that in recent days, the team and cooperators of China University of Science and Technology Pan Jianwei have used linear optical systems to realize the quantum fingerprint recognition in 20 kilometers of optical fiber lines, which has exceeded the classical limit and for the first time in channel capacity. Realize the transcendence of classical communication. The results were recently published in the "Physical Review Letters", an authoritative academic journal of international physics.
The theory of quantum fingerprint recognition was proposed in 2001, but it is limited by various technical conditions. International experiments have failed to break the classical limit. Pan Jianwei team built a 20 km long dual Sagnac interferometer with active phase compensation combined with a super low noise superconducting nanowire single photon detector developed by the Superconducting Laboratory of the Shanghai Institute of Microsystems, Chinese Academy of Sciences. Eventually, the amount of transmitted information is better than the classical limit. 84% low fingerprint recognition.
Pan Jianwei team built a 20 km long dual Sagnac interferometer with active phase compensation combined with a super low noise superconducting nanowire single photon detector developed by the Superconducting Laboratory of the Shanghai Institute of Microsystems, Chinese Academy of Sciences. Eventually, the amount of transmitted information is better than the classical limit. 84% low fingerprint recognition. The laboratory is not only the world's first breakthrough in the classical limit of the quantum fingerprint recognition, but also for the first time in the experiment observed the quantum channel capacity compared to the superiority of the classical channel. 
China re-explosive black technology quantum fingerprinting
Biometrics, which can be said to play an important role in the field of identity recognition, has become the safest and most “honest†technology product due to its unique features such as security, insurance, and portability. All along, the search for more effective biometrics has been the focus of scientific research. 3D facial recognition, vein recognition, etc. have been constantly sizzling in recent years, and fingerprint recognition is the earliest known method of biometric identification, because the proliferation of fingerprint inversion products and other products caused its safety is constantly questioned. So, whether fingerprint recognition will withdraw from the historical stage?