Week 2:- BiW Fixture Basics Challenge
1. The process of project executive activity are.
* RFQ received
* 1st Spec discussion meeting.
* Offer submission
* Loi / Po recipt
* Schedule preparation
* BOM preparation
* Design concept preparation
* Customer approval
* Detailing and Drawing release
* Manufacturing / BOP ordering
* Quality inspection
* Internal trial and testing
* Online trial
* Packaging
* Dispatch
* Installation as per layout
* Trials and training at customer
* Buy off meeting
* Final handover
2. Types of joining process are :-
* Resistance welding :- Spot welding , Projection welding, Seam welding, Resistance But welding
* Arc welding :- TIG, MIG, Submerged arc welding, plasma arc welding.
* Gas welding
* Thermo chemical welding
3. Resistance welding is a process in which Two are more parts are welded by the coordinate and regulated use of heat and pressure, the heat in the resistance welding process is generated by the resistance offered by the work piece to the Flow of current.
Below image shows the Resistance arc welding setup.
Application
* Similar and dissimilar metals can be welded.
* High automated
* Thicker metal can be easily weld.
* Cost effective.
* Environmental Friendly.
4. Fusion welding is a process that uses hear and join or fuse Two or more materials by heating them in to melting point, This process may or may not required the use of filler material, External application of pressure is not required for fussion welding process.
Types of fusion welding
* Arc welding.
* Shielded metal Arc welding.
* Metal insert Gas welding.
* Tungeston inert gas welding
* Plasme Arc welding
* Submerged arc welding
Application
* Large space can be easy filled because of easily applying of filler material.
* This process allow easy welding for Two are more material.
5. 3-2-1 principal
The main principal of this is to Arrest the all 12 degree of freedom.
* Three locators blocks to establish part plane, three locators, or supports, are placed under the work piece. The three locators are usually positioned on the primary location surface. this restricts one Axial movement downward, and 4 radial movements, Together, the three locators resticted Five degree of freedom.
* Round locating Pin in a Round hole that defines locations in four directions Perpendicular to the plane which restrict 4 axial movement.
* Round locating pins in a slot that defines Two of the directions of the other pin this restricts two axil moements.
7. Body plane systems.
Y - axis is FOL ( Front of line )
X - axis is COL ( Center of line )
Z - axis is BOL ( Body of line )