hi im jim,Im looking for literature review of pneumatic punch .As im reading bsc in mechanical enginnering. I wanhelp for a third year mini thesis project

Abstract:
This paper presents the investigation, design and fabrication of blanking of thin sheet (0.1-2 mm) of different
sheet material. The blank diameter is considered as 10 mm. The study helped to evaluate the influence of tool
clearance, burr formation, sheet thickness, punch/die size and blanking layout on the sheet deformation. The punch load
variation with tool travel and stress distribution in the sheet has been obtained. The results indicate that a reduction in
the tool clearance increases the blanking load and formation of burr increasing or decreasing at different pressure. The
objective of this paper is to study the behaviour of punch and formation of burr.

INTRODUCTION
The pneumatic press makes an important contribution to the output of engineering work shops and is indispensable for
the cheap production of large quantity of similar articles when the type of articles concerned is suited of this method of
production. A pneumatic press utilizes a compressed air source to control operation of piston for high pressure to obtain
desire component by using press tools. The press includes a piston operated by the compressed air source to drive a
piston rod to operate the press. This pneumatic press is suitable for small press tool works. It works on the principal of
compressed air. A compressor plant, pipe lines control valve, drive-members and related auxiliary application. The air
is compressed in an air compressor and for the compressor plant, the flow medium is transmitted to the pneumatic
system, it is of vital important that the pressure drop between generation and consumption of compressed air is kept
very low, it has been seen that pipeline fittings and joints are mostly responsible for drop in pressure, if any in
pneumatic system.
In a blanking or punching operation, the sheet gets deformed gradually during the forward punch stroke. At times,
there is a much localized plastic deformation near the punch and die edges. At a certain stage of the punch travel, this
localized deformation gives way to origination of cracks. With a further forward punch travel, these tool edge cracks
propagate through the sheet thickness leading to complete separation. J. Gresham, W. Cantwell, M.J. Cardew Hall, P.
Compston, S. Kalyanasundaram [1], experimentally found that blank-holder force has a significant effect on the failure
mode of the metal–composite system with lower forces resulting in wrinkling as the dominate mode and higher forces
resulting in splitting and fracture. A. A. Ambekar, S. K. Maiti, U. P. Singh, P. P. Date, K. Narasimhan [2], showed the
influence of various process parameters on sheet metal blanking. Most machining operations do not often produce
smooth or well-finished edges on parts. Instead, parts will most likely end up exhibiting ragged, protruding, sometimes
hardened, material along edges, known as burrs. Burr formation affects work piece accuracy and quality in several
ways; dimensional distortion on part edge, challenges to assembly and handling caused by burrs in sensitive locations
on the work piece and damage done to the work surface from the deformation associated with burr formation. A typical
burr formed on a metal component due to the exit of a cutting edge can range in shape and size from small and uniform
(as in a “knife burr”) to rather large, non-uniform in shape and many millimetres in length. D. Dornfeld and S. Min
explained the burrs in conventional machining, process planning for burr minimization as well as micromachining
applications. Prof. T. Z. Quazi, R. S. Shaikh discussed the effect of potential parameters influencing the blanking
process.