Cơ sở tính toán công nghệ (Reference Section)

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Trong khi tính toán công nghệ cho chấn và đột CNC trên máy AMADA hoặc các thiết bị khác, chúng ta thường rất khó khăn trong việc chọn cách tính hoặc đòi hỏi phải có nhiều năm kinh nghiệm. METALFORMING VIỆT NAM xin giới thiệu với quý doanh nghiệp các công thức bảng tính kinh nghiệm đã được nghiên cứu xây dựng khá chính xác và có thể áp dụng hàng ngày trong thiết kế.

 

 

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Reference Section 332 Amada Fujinomiya EML Production 333 ® 335 Contents Reference Amada Reference Section Amada have compiled some useful data which may assist engineers in the daily business of sheet metal design and production. The information and data contained within this reference section is for guidance purposes only. Amada cannot accept any responsibility for typographical errors or mistakes contained herein. Reference 334 Amada Vacuum Dies ® Page General SI Units of Measurement 336 Mechanical Properties 336 Hardness Conversions 337 Wire Gauge Conversion 338 Material Strengths 338 Sheets / Tonne 339 Standard Conversions 340 Calculation of Volume 341 Calculation of Area and Centre of Gravity 342 Tapping: Drill Sizes 344 Page Press Brake Air Bending Tonnage Calculation 345 Air Bending Tonnage Chart: Mild Steel 346 Air Bending Tonnage Chart: Stainless Steel 347 Hemming Tonnages 348 Bend Allowance - 90˚: Mild Steel 349 Bend Allowance - 90˚: Stainless Steel 350 Bend Allowance - 90˚: Aluminium 350 Punch Press Tonnage Calculation 351 Minimum Hole Diameter 351 Burring Hole Reference Chart 352 Countersink Hole Reference Chart 352 Correct Tool Heights 353 Die Clearances 353 e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. Website: www.amada.co.uk 337 Hardness Conversions The table below shows the approximate hardness equivalent according to Rockwell Hardness. Rockwell Hardness C Vickers Hardness Brinell Hardness - Shore Hardness Scale (3) Ball 10mm Dia’ / Load: 3,000kgf (HRC) (HV) Standard Ball Tungsten Carbide (HS) (HB) Ball (HB) 68 940 - - 97 67 900 - - 95 66 865 - - 92 65 832 - 739 91 64 800 - 722 88 63 772 - 705 87 62 746 - 688 85 61 720 - 670 83 60 697 - 654 81 59 674 - 634 80 58 653 - 615 78 57 633 - 595 76 56 613 - 577 75 55 595 - 560 74 54 577 - 543 72 53 560 - 525 71 52 544 500 512 69 51 528 487 496 68 50 513 475 481 67 49 498 464 469 66 48 484 451 455 64 47 471 442 443 63 46 458 432 432 62 45 446 421 421 60 44 434 409 409 58 43 423 400 400 57 42 412 390 390 56 41 402 381 381 55 40 392 371 371 54 39 382 362 362 52 38 372 353 353 51 37 363 344 344 50 36 354 336 336 49 35 345 327 327 48 34 336 319 319 47 33 327 311 311 46 32 318 301 301 44 31 310 294 294 43 30 302 286 286 42 29 294 279 279 41 28 286 271 271 41 27 279 264 264 40 26 272 258 258 38 25 266 253 253 38 24 260 247 247 37 23 254 243 243 36 22 248 237 237 35 21 243 231 231 35 20 238 226 226 34 General Tel: 01562 749500 Fax: 01562 749510 Reference Reference 336 SI Units of Measurement Mechanical Properties SI Unit: the generic term used to describe base, supplementary and derived units of measurement according to the International System of Units. Toughness: the ability of the metal to withstand shock loading. Hardness: the ability of the metal to withstand wear. Ductility: the ability of the metal to withstand forming without fracture. Malleability: the ability of the metal to withstand compression loads without fracture. Tensile Strength: the resistance capacity of the metal to withstand Tension Loads. = Load Cross Sectional Area Shear Strength: the resistance capacity of the metal to withstand Shear Loads. = Load Cross Sectional Area Volume Unit Sign Length Metre m Mass Kilogram kg Time Second s Electric Current Ampere A Area Metre Square m2 Volume Metre Cubic m2 Velocity Metre/Second m/s Acceleration Metre/Second2 m/s2 Density Kilogram / Cubic Kg/m3 Metre FrequencyHertz Hz Force Newton N Pressure, Stress Pascal Pa Energy Joule J Work RateWatt W Electromotive Force Voltage V Electric Resistance Ohm Ω General e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. Website: www.amada.co.uk 339 Sheet / Tonne The table below shows the approximate amount of sheets required per Tonne. 0.70 58 57 170 0.80 51 50 149 0.90 45 44 132 1.00 41 40 119 1.20 34 33 99 1.25 33 32 95 1.50 27 26 79 1.60 26 25 74 2500 1250 2.00 20 20 59 2.50 17 16 47 3.00 14 13 41 4.00 10 10 30 5.00 8 8 24 6.00 7 6 20 8.00 5 5 15 10.00 4 4 12 12.50 3 3 9 0.90 32 30 92 1.00 29 27 83 1.20 24 23 69 1.25 23 22 66 1.50 19 18 52 1.60 18 17 51 3000 1500 2.00 15 13 41 2.50 12 11 33 3.00 10 9 27 4.00 7 7 20 5.00 6 5 16 6.00 5 4 13 Length Width Material Thickness Sheets/Tonne Sheets/Tonne Sheets/Tonne (mm) (mm) (mm) (approx) (approx) (approx) 0.70 91 89 266 0.80 80 78 232 0.90 71 69 208 1.00 64 62 186 1.20 53 52 155 1.25 51 50 149 1.50 43 41 125 1.60 40 39 116 2000 1000 2.00 32 31 93 2.50 26 25 74 3.00 21 20 62 4.00 16 15 46 5.00 13 12 37 6.00 11 10 31 8.00 8 7 23 10.00 7 6 18 12.50 5 5 15 Mild Steel Stainless Steel Aluminium General Tel: 01562 749500 Fax: 01562 749510 Reference Reference 338 Wire Gauge Conversion Material Strengths Imperial Wire Material Imperial Wire Material Imperial Wire Material Imperial Wire Material Gauge Thickness Gauge Thickness Gauge Thickness Gauge Thickness (mm) (mm) (mm) (mm) 1 7.620 11 2.946 21 0.813 31 0.295 2 7.010 12 2.642 22 0.711 32 0.274 3 6.401 13 2.337 23 0.610 33 0.254 4 5.893 14 2.032 24 0.559 34 0.234 5 5.385 15 1.829 25 0.508 35 0.213 6 4.877 16 1.626 26 0.457 36 0.193 7 4.470 17 1.422 27 0.417 37 0.173 8 4.064 18 1.219 28 0.376 38 0.152 9 3.658 19 1.016 29 0.345 39 0.132 10 3.251 20 0.914 30 0.315 40 0.122 Material Type Tensile Strength - kg/mm2 Soft Hard Tin 4-5 - Aluminium 20 40 Duralumin 26 48 Zinc 15 25 Copper 22 - 28 30 - 40 Brass (70 - 30 ) 33 53 Brass (60 - 40 ) 38 49 Bronze 40 - 50 50 - 75 Nickel Silver 35 - 45 55 - 70 Cold Rolled Iron Sheet 32 - 38 - Steel - 0.1%C 32 40 Steel - 0.2%C - (Typical Mild Steel) 40 50 Steel - 0.3%C 45 60 Steel - 0.4%C 56 72 Steel - 0.6%C 72 90 Steel - 0.8%C 90 110 Steel - 1.0%C 100 130 Silicon Steel Sheet 55 65 Stainless Steel Sheet 65 - 70 - Nickel 44 - 50 57 - 63 The table below shows conversions for: Standard Wire Gauge (SWG) - Metric (mm) The table below shows the tensile strength (soft - hard) for a range of materials. General e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. Website: www.amada.co.uk 341 Calculation of Volume The tables below show the calculation required to find the cubic volume of various solids. Truncated Cylinder Volume (v) v = π d2 h 4 = πd2 h1 + h2 4 2 Pyramid Volume (v) v = hA = harn 3 6 A = Area of Base r = Radius of inscribed circle a = Length of a side of regular polygon n = Number of sides Circular Cone Volume (v) v = π r2 h 3 = 1.0472 r2 h Sphere Volume (v) v = 4 π r3 = 4.1888 r3 3 = πd3 = 0.5236 d3 6 [ ] General d h 1 h 2 h a h h r D Tel: 01562 749500 Fax: 01562 749510 Reference Reference 340 Standard Conversions Heat Energy Imperial Factor Metric British Thermal Unit 1054.8 Joules Fuel Consumption Imperial Factor Metric Gallons/Mile 2.825 Litres/Kilometre Miles/Gallon 0.354 Kilometres/Litre Pressure / Stress Imperial Factor Metric Pounds/Square Inch 0.06804 Bar Pounds/Square Inch 0.000703 Kilogram/Metre² Force Imperial Factor Metric Pounds Force 0.2248 Newton Pounds Force 2.2046 Kilograms Force Volume Imperial Factor Metric Cubic Yards 0.7646 Cubic Metres Cubic Feet 0.0283 Cubic Metres Cubic Inches 16.3871 Cubic Centimetres Velocity Imperial Factor Metric Miles/Hour 1.6093 Kilometres/Hour Feet/Second 0.3048 Metres/Second Feet/Minute 0.0051 Metres/Second Capacity Imperial Factor Metric Gallons 4.546 Litres US Gallons 3.785 Litres Quarts 1.137 Litres Pints 0.568 Litres Gills 0.142 Litres Length Imperial Factor Metric Miles 1.6093 Kilometres Yards 0.9144 Metres Feet 0.3048 Metres Inches 25.4 Millimetres Inches 2.54 Centimetres Weight Imperial Factor Metric Tons 1016.05 Kilograms Tons 1.016 Tonnes Hundred Weight 50.8023 Kilograms Quarters 12.7006 Kilograms Stones 6.3503 Kilograms Pounds 0.4536 Kilograms Ounces 28.3495 Grams Area Imperial Factor Metric Square Miles 2.59 Square Kilometres Square Miles 258.999 Hectares Acres 4046.86 Square Metres Acres 0.4047 Hectares Square Yards 0.8361 Square Metres Square Feet 0.0929 Square Metres Square Feet 929.03 Square Centimetres Square Inches 645.16 Square Millimetres Square Inches 6.4516 Square Centimetres To convert to metric: multiply by the factor shown. To convert to imperial: divide by the factor shown. Note: Some conversions are approximate. General e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. Website: www.amada.co.uk 343 Calculation of Area and Centre of Gravity The table below show the calculation required to find the area and centre of gravity of various sections. Section Sectional Area (A) Distance of Gravitational Centre (e) 2.828 r2 0.924 r2 b = a 1 + 2 0.8284 a2 = 0.4142 a π r2 = π d2 d 4 2 r2 (1 - π) e1 = 0.2234 r 2 e2 = 0.7766 r = 0.2146 r2 πab a π x r2 e1 = 0.4244 r 2 e2 = 0.5756 r π x r2 e1 = 0.4244 r 4 e2 = 0.5756 r General e r a e b b 2 b 2 2 b 2 h e r r r e 2 e 1 b a 2r r e 1 e 2 e 2 e 1 r r Tel: 01562 749500 Fax: 01562 749510 Reference Reference 342 Calculation of Area and Centre of Gravity The table below show the calculation required to find the area and centre of gravity of various sections. Section Sectional Area (A) Distance of Gravitational Centre (e) bh h 2 h2 h 2 h2 h 2 2 bh 2 h 2 3 (2b + b1) h 1 x 3b + 2b1 x h 2 3 2b + b1 3 3 x r2 3 r = 0.866 r 2 4 = 2.598 r2 3 3 x r2 2 r = 2.598 r2 General b e h h e h h e h b h e b 1 2 b b e h b 1 2 r e e r e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. Website: www.amada.co.uk 345 Air Bending Tonnage Calculation To calculate the Tonnage required to perform air bending per 1 metre length, the following information is required: If t = material thickness Typical Tensile Strength: Mild Steel = 40kg/mm2 Stainless Steel = 60kg/mm2 Aluminium = 30kg/mm2 Formula: Bend Force/metre = C x t2 x Material Tensile Strength V - Width Example 2.0mm Thick Stainless Steel Die V - Width = 12mm 1.40 x 22 x 60 = 28 Tonnes/Metre 12 V - Width 5 x t 6 x t 8 x t 10 x t 12 x t 16 x t Bend Factor (C) 1.45 1.40 1.33 1.28 1.24 1.20 Press Brake Tel: 01562 749500 Fax: 01562 749510 Reference Reference 344 Tapping: Drill Sizes The table below shows the British Standard tap sizes and the drill size required for a cut thread. The table below shows the British Standard tap sizes and the drill size required for a roll thread. Note: These sizes are calculated to provide 60 to 75 per cent of full thread. The table below shows the American Standard tap sizes and the drill size required. M4 3.30 Nominal Size & Drill Size (mm) Nominal Size & Drill Size (mm) Thread Dia. Thread Dia. M2 1.60 M5 4.20 M2.5 2.05 M6 5.00 M3 2.50 M8 6.80 M3.5 2.90 M10 8.50 M4 3.70 Nominal Size & Drill Size (mm) Nominal Size & Drill Size (mm) Thread Dia. Thread Dia. M2 1.80 M5 4.60 M2.5 2.30 M6 5.60 M3 2.80 M8 7.40 M3.5 3.20 M10 9.30 Size of Screw No. of Threads/inch Drill Size (mm) 4 40 2.261 6 32 2.705 8 32 3.454 10 24 3.797 10 32 4.038 General e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. Website: www.amada.co.uk 347 Press Brake Air Bending Tonnage Chart: Stainless Steel How to Read the Pressure Chart If the material thickness and inner radius are known, the following information can be obtained from the chart below: 1. Tonnage required to bend material of 1 metre length 2. V-width to be used 3. Minimum bend flange length Material Thickness and V-Width The distance across the die opening is known as the V-width. The appropriate V-width should be selected in accordance with the thickness of material being bent. The table below shows the optimum relationship between the material thickness and V-width, although in practice this relationship is often determined by specific requirements, including flange lengths (b), the components inner bend radius (ir) and the tonnage capacity of the machine and tooling. Relationship of Material Thickness (t) and V-Width 4 6 7 8 10 12 14 16 18 20 25 32 40 50 63 80 100 125 160 t 2.8 4 5 5.5 7 8.5 10 11 13.5 14 17.5 22 28 35 45 55 71 89 113 mm 0.7 1 1.1 1.3 1.6 2 2.3 2.6 3 3.3 4 5 6.5 8 10 13 16 20 26 0.5 6 5 0.6 9 6 6 6 0.7 12 8 8 6 6 0.8 11 11 8 7 0.9 13 12 10 8 7 1 17 15 12 11 8 1.2 21 18 15 12 11 9 1.5 20 17 15 13 12 2 33 29 26 23 20 17 2.5 39 35 30 25 19 3 51 45 36 29 23 4 65 51 41 32 26 5 78 63 50 39 32 6 90 72 57 45 36 8 102 81 65 51 10 128 101 80 63 12 144 117 90 15 180 141 20 250 25 30 200 250 V 140 175 b 33 41 ir F 83 114 208 167 315 255 360 t Material thickness (tensile strength: 52 - 60kg/mm2) F Tonnage per 1 metre ir Inner bending radius b Minimum flange length V V-width Material Thickness (t) mm 0.5 - 2.5 3.0 - 8.0 9.0 - 10.0 12.0 or more V-Width 6 x t 8 x t 10 x t 12 x t Tel: 01562 749500 Fax: 01562 749510 Reference Reference 346 Press Brake Air Bending Tonnage Chart: Mild Steel How to Read the Pressure Chart If the material thickness and inner radius are known, the following information can be obtained from the chart below: 1. Tonnage required to bend material of 1 metre length 2. V-width to be used 3. Minimum bend flange length Material Thickness and V-Width The distance across the die opening is known as the V-width. The appropriate V-width should be selected in accordance with the thickness of material being bent. The table below shows the optimum relationship between the material thickness and V-width, although in practice this relationship is often determined by specific requirements, including flange lengths (b), the components inner bend radius (ir) and the tonnage capacity of the machine and tooling. Relationship of Material Thickness (t) and V-Width Material Thickness (t) mm 0.5 - 2.5 3.0 - 8.0 9.0 - 10.0 12.0 or more V-Width 6 x t 8 x t 10 x t 12 x t 4 6 7 8 10 12 14 16 18 20 25 32 40 50 63 80 100 125 160 t 2.8 4 5 5.5 7 8.5 10 11 13.5 14 17.5 22 28 35 45 55 71 89 113 mm 0.7 1 1.1 1.3 1.6 2 2.3 2.6 3 3.3 4 5 6.5 8 10 13 16 20 26 0.5 4 3 0.6 6 4 4 4 0.8 7 7 5 4 1 11 10 8 7 6 1.2 14 12 10 8 7 6 1.4 15 13 11 10 9 8 1.6 17 15 13 11 10 9 2 22 19 17 15 13 11 2.3 25 23 19 17 15 12 2.6 28 25 22 18 14 3 34 30 24 19 15 3.2 34 27 22 17 14 3.5 33 26 20 16 13 4 43 34 27 21 17 4.5 44 34 27 21 5 52 42 33 26 21 6 60 48 38 30 24 7 52 41 33 26 9 67 54 43 10 85 67 53 42 12 96 78 60 16 136 107 19 150 22 25 30 200 250 V 140 175 b 33 41 ir F 55 86 125 100 160 130 210 170 240 t Material thickness (tensile strength: 45 - 50kg/mm2) F Tonnage per 1 metre ir Inner bending radius b Minimum flange length V V-width e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. Website: www.amada.co.uk 349 Bend Allowance - 90° The following tables show the elongation factor (f) of mild steel, stainless steel and Aluminium during a 90° bend. V = V - width (mm) t = material thickness (mm) f = bend allowances (mm) Example 1 - Bending 1mm mild steel in a 6mm ‘V’ die If (f) = Elongation factor If (d) = Blank development size d = (20 + 40) - 2f d = 60 - (2 x 0.87) d = 58.26mm Mild Steel 20.0 40.0 1.0 Press Brake V t 4 6 7 8 10 12 14 16 18 20 25 32 0.5 0.47 0.55 0.59 0.63 0.70 0.6 0.54 0.62 0.65 0.69 0.77 0.85 0.7 0.60 0.68 0.72 0.76 0.83 0.91 0.99 0.8 0.67 0.74 0.78 0.82 0.90 0.97 1.05 1.13 1.0 0.80 0.87 0.91 0.95 1.03 1.10 1.18 1.26 1.33 1.41 1.2 1.00 1.04 1.08 1.15 1.23 1.31 1.38 1.46 1.54 1.5 1.19 1.23 1.27 1.35 1.42 1.50 1.58 1.65 1.73 1.92 1.6 1.42 1.47 1.57 1.49 1.76 1.86 1.96 2.05 2.29 2.0 1.59 1.67 1.74 1.82 1.90 1.97 2.05 2.24 2.3 1.65 1.71 1.77 1.84 1.90 1.97 2.03 2.19 2.5 1.99 2.07 2.14 2.22 2.29 2.37 2.56 2.6 2.13 2.21 2.28 2.30 2.44 2.63 3.0 2.39 2.46 2.54 2.62 2.69 2.88 3.2 2.51 2.59 2.67 2.74 2.82 3.01 2.63 2.51 2.41 2.83 2.90 3.15 3.28 Tel: 01562 749500 Fax: 01562 749510 Reference Reference 348 Hemming Tonnages Hemming is a form of bending requiring higher amounts of tonnage than standard Air Bending. The tables below shows the tonnage required for hemming and seaming operations. Bending Shape Sheet Thickness (mm) Required Tonnage C Required Tonnage 2t 0.6 15.0 3.0 35.0 1.2 0.8 20.0 3.0 50.0 1.6 1.0 25.0 3.5 60.0 2.0 1.2 26.0 3.5 80.0 2.4 1.5 38.0 3.5 95.0 3.0 2.0 50.0 5.5 130.0 4.0 2.5 90.0 6.5 180.0 5.0 3.0 100.0 8.0 210.0 6.0 4.0 140.0 11.3 280.0 8.0 Mild Steel Stainless Steel Bending Shape Sheet Thickness (mm) Required Tonnage C Required Tonnage 2t 0.6 9.0 3.0 23.0 1.2 0.8 12.0 3.0 32.0 1.6 1.0 15.0 3.5 40.0 2.0 1.2 17.0 3.5 50.0 2.4 1.6 24.0 3.5 63.0 3.2 2.0 30.0 5.5 80.0 4.0 2.6 55.0 6.5 90.0 5.2 3.2 70.0 8.0 100.0 6.4 4.5 105.0 11.3 200.0 9.0 Note: Required tonnage is given per 1 metre length. Note: Required tonnage is given per 1 metre length. Press Brake c 2t c 2t e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. Website: www.amada.co.uk 351 Tonnage Calculation Minimum Hole Diameter The punching tonnage is calculated by using the following formula: Length of the cut edge (mm) x Material Thickness (mm) x Tensile Strength (kg/mm2) 1000 Example 1 Rectangle 50 x 10 in 2.0mm Stainless Steel Tonnage Required = (50 + 50 + 10 + 10) x (2.0) x (60) 1000 Tonnage Required = 14.4 Tonnes Example 2 30mm Diameter in 1.5mm Mild Steel Tonnage Required = (3.142 x 30) x (1.5) x (40) 1000 Tonnage Required = 5.7 Tonnes As a general guideline, the following table shows the minimum diameter of a punched hole with regards to material thickness. t = Material Thickness It is possible to punch smaller hits, please contact Tooling Hotline for assistance. Material Type Minimum Hole Diameter Mild Steel 1.0 x t Aluminium 1.0 x t Stainless Steel 2.0 x t Punch Press Tel: 01562 749500 Fax: 01562 749510 Reference Reference 350 Bend Allowance - 90° V = V - Width (mm) t = Material Thickness (mm) f = bend allowances (mm) Aluminium Stainless Steel Press Brake V t 4 6 7 8 10 12 14 16 18 20 25 32 0.5 0.52 0.63 0.69 0.75 0.86 0.6 0.58 0.69 0.75 0.80 0.92 1.03 0.7 0.64 0.75 0.81 0.86 0.98 1.09 1.20 0.8 0.70 0.81 0.87 0.92 1.04 1.15 1.26 1.37 1.0 0.82 0.94 0.99 1.05 1.17 1.29 1.40 1.52 1.64 1.75 1.2 1.05 1.10 1.16 1.27 1.38 1.50 1.61 1.72 1.83 1.5 1.23 1.28 1.34 1.45 1.56 1.67 1.79 1.90 2.01 2.29 1.6 1.34 1.40 1.51 1.62 1.73 1.85 1.96 2.07 2.35 2.0 1.64 1.74 1.85 1.96 2.07 2.18 2.28 2.55 2.3 1.81 1.93 2.04 2.15 2.26 2.37 2.49 2.77 2.5 2.04 2.16 2.27 2.38 2.49 2.60 2.88 2.6 2.22 2.33 2.44 2.55 2.66 2.94 3.0 2.45 2.56 2.68 2.79 2.90 3.18 3.2 2.57 2.68 2.80 2.91 3.02 3.30 2.74 2.93 3.16 3.28 3.34 3.57 3.69 V t 4 6 7 8 10 12 14 16 18 20 25 32 0.5 0.40 0.44 0.47 0.49 0.54 0.6 0.46 0.50 0.53 0.55 0.60 0.65 0.7 0.52 0.56 0.59 0.61 0.66 0.71 0.76 0.8 0.58 0.62 0.65 0.67 0.72 0.77 0.82 0.87 1.0 0.69 0.74 0.77 0.80 0.85 0.90 0.95 1.00 1.06 1.11 1.2 0.86 0.89 0.91 0.96 1.01 1.06 1.11 1.15 1.20 1.5 1.04 1.07 1.09 1.14 1.19 1.24 1.29 1.33 1.38 1.50 1.6 1.13 1.15 1.20 1.25 1.30 1.35 1.39 1.44 1.56 2.0 1.40 1.45 1.49 1.54 1.58 1.63 1.67 1.79 2.3 1.57 1.62 1.67 1.72 1.76 1.81 1.86 1.98 2.5 1.74 1.79 1.83 1.88 1.93 1.98 2.10 2.6 1.85 1.89 1.94 1.99 2.04 2.16 3.0 2.09 2.13 2.18 2.23 2.28 2.40 3.2 2.20 2.25 2.30 2.35 2.40 2.52 1.73 1.94 2.15 2.27 2.33 2.57 2.69 e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. Website: www.amada.co.uk 353 Correct Tool Heights The table below shows the correct tool height for Standard and NEX tooling. Die Clearances The table below shows the recommended die clearances for a range of materials and thicknesses. Notes: i) The figures in the above chart are given as a range, for example 0.15 - 0.20mm. For mechanical machines choose the smaller die clearance of the range. For hydraulic machines choose the larger die clearance of the range. ii) For Galvatite and Zintec materials, use Mild Steel as a guide. iii) The figures above are a guideline only. Please refer to your Machine Operators Manual for more specific details. Tool Style Setting Height Punch Body Only Die Only Thick Thin Thick Thin Thick & Thin “A” Stn Standard 207.5 139.7 207.0 139.2 30 “A” Stn NEX 208.0 - 207.0 - 30 “B” Stn Standard 207.5 139.7 207.0 139.2 30 “B” Stn NEX 208.0 - 207.0 - 30 “B” Stn Mod’ 2000 - 139.7 - 139.2 30 “C” Stn 208.0 - 96.0 - 30 “D” Stn 209.0 140.0 84.0 70.0 30 “D” Stn PR Type - 140.0 - 25.5 30 “E” Stn 210.0 - 85.0 - 30 Note: i) The Punch setting height is the measurement taken from the top of the Punch Assembly head to the bottom cutting edge of the punch body, not the bottom of the guide or stripper plate. Material Mild Stainless Aluminium Copper Brass Thick Steel Steel 0.8mm 0.15 - 0.20mm 0.20 - 0.24mm 0.15 - 0.16mm 0.15 - 0.16mm 0.15 - 0.16mm 1.0mm 0.20 - 0.25mm 0.25 - 0.30mm 0.15 - 0.20mm 0.15 - 0.20mm 0.15 - 0.20mm 1.5mm 0.30 - 0.38mm 0.37 - 0.45mm 0.22 - 0.30mm 0.22 - 0.30mm 0.22 - 0.30mm 2.0mm 0.40 - 0.50mm 0.50 - 0.60mm 0.30 - 0.40mm 0.30 - 0.40mm 0.30 - 0.40mm 2.5mm 0.50 - 0.63mm 0.62 - 0.75mm 0.37 - 0.50mm 0.37 - 0.50mm 0.37 - 0.50mm 3.0mm 0.60 - 0.75mm 0.75 - 0.90mm 0.45 - 0.60mm 0.45 - 0.60mm 0.45 - 0.60mm 3.2mm 0.64 - 0.80mm 0.80 - 0.96mm 0.48 - 0.64mm 0.48 - 0.64mm 0.48 - 0.64mm 3.5mm 0.70 - 0.88mm 0.88 - 1.05mm 0.53 - 0.70mm 0.53 - 0.70mm 0.53 - 0.70mm 4.0mm 0.80 - 1.00mm 1.00 - 1.20mm 0.60 - 0.80mm 0.60 - 0.80mm 0.60 - 0.80mm 4.5mm 0.90 - 1.13mm 1.13 - 1.35mm 0.68 - 0.90mm 0.68 - 0.90mm 0.68 - 0.90mm 5.0mm 1.00 - 1.25mm - 0.75 - 1.00mm 0.75 - 1.00mm 0.75 - 1.00mm 5.5mm 1.10 - 1.38mm - 0.83 - 1.10mm 0.83 - 1.10mm 0.83 - 1.10mm 6.0mm 1.20 - 1.50mm - 0.90 - 1.20mm 0.90 - 1.20mm 0.90 - 1.20mm Punch Press Tel: 01562 749500 Fax: 01562 749510 Reference Reference 352 Burring Hole Reference The table below shows the pre-pierce and burred hole sizes for Mild Steel. Countersink Hole Reference The table below shows the nominal pre-pierce hole sizes required for a countersink operation for Mild Steel. Screw Size Material M2 M2.5 M2.6 M3 M4 M5 M6 Thickness x 0.4 x 0.45 x 0.45 x 0.5 x 0.7 x 0.8 x 1.0 1.0 3.5 4.5 4.8 5.7 - - - 1.2 3.5 4.5 4.5 5.3 7.3 - - 1.5 3.2 4.2 4.5 5.3 7.3 9.0 - 1.6 3.0 4.0 4.3 5.0 7.0 8.8 10.8 2.0 3.0 3.8 4.0 4.8 7.0 8.6 10.6 2.3 3.0 3.8 4.0 4.8 6.8 8.5 10.5 2.5 - - - 4.5 6.5 8.4 10.4 3.0 - - - 4.4 6.0 8.0 10.0 3.2 - - - 4.0 5.8 7.8 9.8 ø A ø B t Pre-Pierced Hole (øA) Nominal Burr Hole (øB) 0.8mm 1.0mm 1.2mm 1.6mm 2.0mm 2.3mm M2.6 x 0.45 1.2 1.2 1.4 1.6 - - 2.21 M3 x 0.5 1.2 1.5 1.5 1.7 - - 2.57 M4 x 0.7 - 2.0 2.0 2.1 2.3 2.7 3.40 M5 x 0.8 - 2.0 2.0 2.6 3.0 3.1 4.30 M6 x 1.0 - 2.0 2.0 3.4 3.8 3.8 5.10 Material Thickness Tap Size Punch Press e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. Website: www.amada.co.uk Notes 355 Tel: 01562 749500 Fax: 01562 749510 Reference General General Reference Further Information I/We request further information via the Amada e-bulletin on: (Please tick as appropriate) Tooling Press Brake Tooling ■ Punch Press Tooling ■ Machines Press Brake m/c ■ Automation ■ Punch Press m/c ■ Shear ■ Laser m/c ■ Power Press ■ Pre-owned Machines ■ Service & Machine Parts Service Contracts ■ Parts Consumables ■ A copy of The Amada Machine Tool Handbook ■ Name: Position: Company Name: Address: E-mail: Telephone No: Fax No: Please Copy & Fax back to: 01562 749510 354 e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. Website: www.amada.co.uk General Reference Tel: 01562 749500 Fax: 01562 749510 Reference General Notes 356 Notes 357 e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. Website: www.amada.co.uk General Reference Tel: 01562 749500 Fax: 01562 749510 Reference General Notes Notes 358 359 Tel: 01562 749500 Fax: 01562 749510 Reference General Notes 360

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