North China, the most leading packaging professional exhibition —— The third session of Shandong International Packaging Industry Technology Exhibition in 2008 Approved by the Ministry of Science and Technology, the "3rd Shandong International Packaging Industry Technology Exhibition" co-sponsored by the China Mechanical Engineering Society and the People's Government of Jinan City will be held from September 10th to 12th, 2008 at the Jinan International Convention and Exhibition Center. The last exhibition attracted over 300 well-known companies from 14 countries and regions including Belgium, France, Germany, Hong Kong, Italy, Japan, South Korea, Malaysia, Singapore, Sweden, Taiwan, the United Kingdom and the United States. Based on the succession of the previous exhibition, the total exhibition area will be expanded to 20,000 square meters, and exhibitors are expected to exceed 700. The General Assembly has four special exhibition halls, including: 1) Food Packaging Hall 2) Beer & Beverage Processing & Packaging Hall 3) Pharmaceuticals & Daily Chemicals Hall 4) Integrated Packaging Industry Hall. The exhibition categories include: food packaging, beverage beer packaging, pharmaceutical and daily chemical packaging, packaging materials, packaging materials production equipment and technology, packaging products and services, beverage technology and equipment, beer technology and equipment, dairy technology and equipment products. It will showcase new and efficient packaging machinery, materials, products and professional services for the food, beverage, cosmetic and cosmetic industries and pharmaceutical industries at home and abroad. In 2008, we hope to build a broader stage for you through our efforts! Welcome to call this conference organizing committee: Jinan Exhibition Service Telephone Fax Qingdao Exhibition Office Telephone Fax
Sheet Metal Fabrication
Definition of sheet metal fabrication
Sheet Metal fabrication is the creation of useful metallic parts and structures by the application of multiple fabrication processes. Sheet metal fabrication is basically a broad term that involves various complex processes like cutting, forming, bending, welding, machining, and assembling. The instructions include below: materials, processes, and tools required for sheet metal fabrication.
Types of Sheet Metal Fabrication Materials
The choice of metal depends on the final use of the fabricated parts.
Common fabrication processes:
· Carbon Steel
· Stainless Steel
· Aluminum
· Bronze
· Copper
· Brass
· Aluminized steel
· Galvanized steel
Types of Metal Fabrication Processes
The journey to the final product from raw sheet metals proceeds through various sheet metal fabrication processes. All the sheet metal fabrication processes can be grouped into the following three categories:
· Cutting
· Deformation
· Assembly
Sheet metal fabrication: Cutting
ii. Water jet cutting
iii. Plasma cutting
Sheet metal fabrication: Forming or Deformation
Bending: Sheet metal bending is one of the most popular deformation processes. A machine known as a Press brake is used to bend sheet metals into V, U, or other complex shapes. With an increase in gauge thicknesses of sheet metals the force required to bend increases.
Stamping: In the stamping process, a hydraulic or mechanical stamping press equipped with a tool and die is used to perform specific tasks like curling, drawing, embossing, flanging, etc
Hemming: Hemming is a process by which the edges of sheet metal are folded over itself or another piece of sheet metal to create a rounded edge. In the sheet metal fabrication process, two types of hemming processes are widely involved. They are roll hemming and conventional die hemming. Conventional hemming is used for mass production. A hemming roller is used for roll hemming.
Spinning: Spinning is a metal fabrication process where a lathe machine is used to rotate the sheet metal against a tool to produce conical or cylindrical shapes.
Sheet metal fabrication: Assembly
Assembly is basically joining sheet metal components produced using above mentioned cutting or bending processes. The common sheet metal assembly process consists of joining by Welding and joining using fasteners.
Welding: In the welding process, sheet metal components are joined together by melting sections with the application of heat to form a solid connection. There are various processes available that are used to weld sheet metals.
Joining using Fasteners: Similar or dissimilar sheet metal parts can easily be joined using fasteners like bolts, screws, rivets, etc.
Brazing: Brazing is a process similar to welding that operates by melting a filler without melting the sheet metals.
Adhesives: Adhesives can be used to hold metal sheets together in conjunction with other joining methods
Advantages and Disadvantages of Sheet Metal Fabrication
As sheet metal fabrication covers a wide area of techniques and methods, the advantages and limitations will vary depending on the process used during fabrication.
Benefits:
i. Sheet metal fabrication is fast and can produce high-quality components.
i. A large number of processes are available with wide range of materials
ii. High strength to weight ratio for sheet metal fabricated parts.
Disadvantage:
i. Each fabrication process has their own limitations.
ii. High initial cost for set up of equipment and tools.
iii. Requirement of skilled labors for each process.
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