ced5a5f5e9 General Press tool Construction The general press tool construction will have following elements:Shank: It is used to locate the press tool in press for alignment purpose.Top Plate: It is used to hold top half of the press tool with press slide.Punch Back Plate : This plate prevents the hardened punches penetrating into top plate.Punch Holder: This plate is used to accommodate the punches of press tool.Punches : To perform cutting and not cutting operations either plain or profiled punches are used.Die Plate: Die plate will have similar profile of the component where cutting dies usually have holes with landand angular clearance and non cutting dies will have profiles.Die Back Plate:This plate prevents the hardened Die inserts penetrating into bottom plate.Guide Pillar & Guide Bush : Used for alignment between top and bottom halves of the press tools.Bottom plate:It is used to hold bottom half of the press tool with press slide.Stripper plate: it is used to strip off the component from punches.strip guides: It is used to guide the strip into the press tool to perform the operation. Bending tool Bending tools apply simple bends to stampings. Types of press tools3 Drawing Tool This type of Press tool is used to perform onlyone particular operation therefore classifiedunder stage tools.  Classification of press tools Blanking tool Blanking Tool When a component is produced with onesingle punch and die where the entire outerprofile is cut in a single stroke the tool iscalled a blanking tool.Blanking is the operation of cutting flatshapes from sheet metal.The outer area of metal remaining after ablanking operation is generally discarded aswaste.Size of blank or product is the size of the die & clearance is given on punch.It is a metal cutting operation. Piercing Tool Piercing tool Piercing involves cutting of clean holes with aresulting scrap slug. Partings waste a certain amount of material, that can be significant. Toggle navigation DocFoc Login Signup Home Education Technology Documents More Topics . Cookies are required to use this site. Progressive tool A progressive tool differs from a stage tool inthe following respect: in a progressive tool thefinal component is obtained by progressing thesheet metal or strip in more than one stage.
Compound tool The compound tool differs from progressive and stage tools by the arrangement of the punch and die. Combination tool In a combination tool two or more operations such as bending and trimming will be performed simultaneously. It is aninverted tool where blanking and piercing takes place in a single stage and also the blanking punch will act as thepiercing die. The operation is called diecutting and can also produce flat componentswhere the die, the shaped tool, is pressed into asheet material employing a shearing action to cutholes. Types of press tools2 Parting off tool Partings are similar, in that a discrete part is cut from a sheet or strip of metal along a desired geometric path. Newletter About Terms DMCA Contact STARTUP - Share & Download Unlimited . Twoor more operations such as forming, drawing, extruding, embossing may be combined on the component withvarious cutting operations like blanking, piercing, broaching and cut off takes place- it can perform a cutting and noncutting operations in a single tool. This irregular edge is trimmed in a trimming die. Cut off tool Cutoff tool Cut off operations are those in which a strip ofsuitable width is cut to length in a singleoperation.