Engineering and Management Study

Kaizen: A.      Kaizen is a Japanese term that is typically referred to as continuous improvement or creation of a system of continuous improvement in quality, technology,processes, culture, productivity, safety, and leadership. B.      Kaizen isconsidered as one of the driving forces behind Toyota’s journey to excellence. C.      This was a result of Toyota’s success in establishing plans to sustain and further improve a desirable level of performance and to prevent degradation and loss of lean momentum. D.      Deploying a Kaizen effort or plan in a company implies working continuously for improvement in all facets of operation. E.       Kaizen is based on making little changes on a regular basis (i.e., always improving productivity, safety, and effectiveness and reducing waste). These continual small improvements add up to major benefits. They result in im...

Typical rivet heads and shanks 4.2.2  Typical riveted lap joints Single row lap joint Double row (chain) lap joint Double row (zigzag) lap joint 4.2.3  Typical riveted butt joints Single strap chain riveted butt joint (single row) Note Note:  This joint may also be double row riveted, chain or zigzag. The strap width = 12  D  when double riveted (pitch between rows = 3  D ). Double strap chain riveted butt joint (double row) Note:  This joint may also be double row zigzag riveted (see Section 4.2.2) or it may be single riveted as above. 4.2.4  Proportions for hole diameter and rivet length 4.2.5  Cold forged snap head rivets

Introduction  When two plates or parts are joined together, they may joined permanently or temporarily. Thus the joints may be classified as Permanent joints or fastenings, and Temporary joints or fastenings. Permanent fastenings These are joints which cannot be disassembled without breaking the connecting or joining components. Welded joints, riveted joints are permanent joints. Temporary fastenings These joints are made temporarily so that they can be disassembled when ever required without destroying the connecting or joining components. Screwed joints and pin joints are temporary joints. Rivet The rivet is a piece of metal usually, mild steel or wrought iron used to make permanent joints that has strength and tightness. It is also made of  brass, aluminium and copper.   Riveting:   The process of forming another rivet-head, after the rivet is placed in the holes previously drilled or punched through the plates, is called riveting Fig.6.2.Riveting Types of ri...

Drawing nuts and bolts It is often necessary to draw nuts and bolts and a quick easy method is required to produce a satisfactory result Nuts and bolts are not normally drawn on detail drawings unless they are of a special type. They are shown on assembly drawings and, provided  they are standard stock sizes, are called up in parts lists and Schedules It is conventional drawing practice to show, as first choice, nuts and bolts in the across corners position if a single view only is  illustrated since this is instantly. Approximate construction for nuts and bolts 1. Draw a circle in the plan position, 2D in diameter,where D is equal to the thread size. In this example let us assume that the  thread size is M20. 2. Draw a hexagon inside the 40 mm diameter circle and inside the hexagon draw another circle tangential to the hexagon on the six sides. This circle is the Projection of the chamfer which can be seen on the Front elevation. 3. The nut thickness is 0.8D. Project the...