In this case the tensile strength of SPCC is taken as 30 kgf/mm2. Cutting force 2. A = L x S = Shear area Strip die design book, 4. Number of draw reduction 14. 　　　　　Ts: Tensile strength (kgf/mm. 6. The various recommended average cutting speeds for a high speed steel tool and carbide tool for different feeds and depths for cutting various metals are given in the following table: Example: At what r.p.m. Press Force calculation: The essential considerations are: Cutting force Stripping force Ejection force 1. equivalent chart pulling prevention, Tool tips and tricks, Slug Primary Cutting Force. ANSYS and Cutting force are presented for the further analysis of the mechanical system. Process Capability CPK The cutting force components (F X, F Y and F Z) were recorded (Charts 1, 2 and 3 for roughing below) and tabulated (Tables 1, 2 and 3 below). 　　　　　P: Blanking force (kgf) Alu Base Plate thickness / Rigidity of Structure for hydraulic Press Plus the tools & tutorials based on 40 years of engineering knowledge. - metri Conversion Charts F = Cutting force equivalent chart, Steel CUTTING CLEARANCE Cutting Clearance:Cutting clearance is the gap between a side of the punch and the corresponding side of the die opening when the punch is entered into the die opening. Carbon In order to develop a prediction of the cutting forces suffered by the tool, a MATLAB programme has been created with the variable features of tool geometry and cutting conditions. Punching Force Calculator June 1, 2012. 3, during linear milling process, if the tool path is straight line, then the feed rate of every cutting point along the cutter envelope keeps constant, and equals normal feed rate f, here f refers to the feed per tooth. Cutting force Ebooks, Tool Equation 1 Surface Texture, tAQL In general cutting force (CF) can be calculated. Most often the shearing angle is provided so that the dimension H is roughly equal to or more than the plate thickness. Cutting clearnace should always be expressed as the amount of clearance per side. Cutting force Cutting force is the force applied on the stock material in order to cut out the blank or slug. N-m . L = Total cutting length 2. Knowing the forming force necessary for carrying out a press blanking operation (shearing operation) is indispensable for selecting the press machine and for carrying out the die and punch design. Slug Stripping force 3. ISO tolerance for shafts Stripping force 1. The formula for a press tool depends on what you're trying to calculate. and standards For example, if you're interested in cutting force, the formula is the shear area times the shear strength. comparison table, Tool Tool Material S = Material thickness Area of fillet Draw clearance The deformation can be idealized as a process of block slip (or preferred slip planes) deformation ShearStrain Length γ = and Fixture Design Book, GDT Deep Drawn Caluculation of cutting force Cutting force = l*s*T max where, l = length … By the way, the blanking force can be reduced by about 30% when the dimension H of the shearing angle is made equal to the plate thickness.