{"id":16521,"date":"2025-11-05T13:15:41","date_gmt":"2025-11-05T13:15:41","guid":{"rendered":"https:\/\/onmytoolings.com\/?page_id=16521"},"modified":"2025-11-10T12:14:40","modified_gmt":"2025-11-10T12:14:40","slug":"%e8%bb%8a%e5%89%8a%e5%88%87%e5%89%8a%e9%80%9f%e5%ba%a6%e8%a8%88%e7%ae%97%e6%a9%9f","status":"publish","type":"page","link":"https:\/\/onmytoolings.com\/zh\/machining-calculator\/turning-cutting-speed-calculator\/","title":{"rendered":"\u8eca\u524a\u5207\u524a\u901f\u5ea6\u8a08\u7b97\u6a5f"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"16521\" class=\"elementor elementor-16521\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9706e4b e-flex e-con-boxed e-con e-parent\" data-id=\"9706e4b\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-608e91b elementor-widget elementor-widget-html\" data-id=\"608e91b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"turning-calculator\">\r\n    <style>\r\n        .turning-calculator {\r\n            font-family: Arial, sans-serif;\r\n            width: 100% !important;\r\n            max-width: none !important;\r\n            margin: 50px auto !important;\r\n            padding: 20px !important;\r\n            border: 1px solid #ccc !important;\r\n            border-radius: 10px !important;\r\n            background-color: #f9f9f9 !important;\r\n            box-sizing: border-box !important;\r\n        }\r\n        .turning-calculator h1 {\r\n            text-align: center;\r\n            color: #333;\r\n        }\r\n        .turning-calculator .units-select {\r\n            width: 100%;\r\n            padding: 8px;\r\n            margin-bottom: 15px;\r\n            border: 1px solid #ddd;\r\n            border-radius: 4px;\r\n            box-sizing: border-box;\r\n        }\r\n        .turning-calculator label {\r\n            display: block;\r\n            margin: 10px 0 5px;\r\n            font-weight: bold;\r\n        }\r\n        .turning-calculator input[type=\"number\"] {\r\n            width: 100%;\r\n            padding: 8px;\r\n            margin-bottom: 15px;\r\n            border: 1px solid #ddd;\r\n            border-radius: 4px;\r\n            box-sizing: border-box;\r\n        }\r\n        .turning-calculator button {\r\n            width: 100%;\r\n            padding: 10px;\r\n            background-color: #4CAF50;\r\n            color: white;\r\n            border: none;\r\n            border-radius: 4px;\r\n            cursor: pointer;\r\n            font-size: 16px;\r\n            margin-bottom: 10px;\r\n        }\r\n        .turning-calculator button:hover {\r\n            background-color: #45a049;\r\n        }\r\n        .turning-calculator .sample-btn {\r\n            background-color: #007bff;\r\n            width: auto;\r\n            display: block;\r\n            margin: 0 auto 15px;\r\n            padding: 8px 16px;\r\n        }\r\n        .turning-calculator .sample-btn:hover {\r\n            background-color: #0056b3;\r\n        }\r\n        .turning-calculator #result-vc, .turning-calculator #result-f, .turning-calculator #result-tc {\r\n            margin-top: 20px;\r\n            padding: 10px;\r\n            background-color: #e7f3ff;\r\n            border-radius: 4px;\r\n            text-align: center;\r\n            font-size: 18px;\r\n            font-weight: bold;\r\n        }\r\n        .turning-calculator .formula {\r\n            text-align: center;\r\n            margin: 10px 0;\r\n            font-style: italic;\r\n            color: #666;\r\n        }\r\n        .turning-calculator .note {\r\n            margin-top: 15px;\r\n            padding: 10px;\r\n            background-color: #fff3cd;\r\n            border: 1px solid #ffeaa7;\r\n            border-radius: 4px;\r\n            font-size: 14px;\r\n            color: #856404;\r\n        }\r\n        .turning-calculator .explanation {\r\n            margin-top: 30px;\r\n            padding: 15px;\r\n            background-color: #fff;\r\n            border: 1px solid #ddd;\r\n            border-radius: 8px;\r\n        }\r\n        .turning-calculator .explanation h2 {\r\n            color: #333;\r\n            margin-bottom: 10px;\r\n        }\r\n        .turning-calculator .explanation h3 {\r\n            color: #555;\r\n            margin-top: 20px;\r\n            margin-bottom: 10px;\r\n        }\r\n        .turning-calculator .explanation p {\r\n            margin-bottom: 15px;\r\n            line-height: 1.5;\r\n        }\r\n        .turning-calculator .params {\r\n            display: flex;\r\n            justify-content: space-between;\r\n            margin-bottom: 10px;\r\n            flex-wrap: wrap;\r\n        }\r\n        .turning-calculator .param {\r\n            text-align: center;\r\n            flex: 1 1 20%;\r\n            padding: 5px;\r\n            min-width: 120px;\r\n        }\r\n        .turning-calculator .example {\r\n            background-color: #f8f9fa;\r\n            padding: 15px;\r\n            border-left: 4px solid #007bff;\r\n            margin-top: 15px;\r\n            display: flex;\r\n            align-items: flex-start;\r\n            gap: 15px;\r\n        }\r\n        .turning-calculator .example-text {\r\n            flex: 1;\r\n        }\r\n        .turning-calculator .diagram {\r\n            flex: 0 0 auto;\r\n            text-align: left;\r\n        }\r\n        .turning-calculator .diagram img {\r\n            width: auto;\r\n            height: auto;\r\n            max-width: 100%;\r\n            border-radius: 4px;\r\n            box-shadow: 0 2px 4px rgba(0,0,0,0.1);\r\n        }\r\n        .turning-calculator .metric-sample, .turning-calculator .imperial-sample {\r\n            display: none;\r\n        }\r\n        .turning-calculator .metric-sample.active, .turning-calculator .imperial-sample.active {\r\n            display: block;\r\n        }\r\n        .turning-calculator .section {\r\n            margin-bottom: 30px;\r\n            padding: 15px;\r\n            border: 1px solid #ddd;\r\n            border-radius: 5px;\r\n            background-color: #fff;\r\n        }\r\n        .turning-calculator .section h3 {\r\n            margin-top: 0;\r\n            color: #333;\r\n        }\r\n\r\n        \/* Responsive Design - Optimized for wider desktops *\/\r\n        @media (min-width: 601px) and (max-width: 900px) {\r\n            .turning-calculator {\r\n                max-width: 700px;\r\n                padding: 30px;\r\n            }\r\n            .turning-calculator .params {\r\n                font-size: 14px;\r\n            }\r\n            .turning-calculator .param {\r\n                flex: 1 1 25%;\r\n            }\r\n        }\r\n\r\n        @media (min-width: 901px) {\r\n            .turning-calculator {\r\n                max-width: none !important; \/* Full width on large screens *\/\r\n                padding: 40px;\r\n            }\r\n            .turning-calculator .params {\r\n                font-size: 16px;\r\n            }\r\n        }\r\n\r\n        @media (max-width: 600px) {\r\n            .turning-calculator {\r\n                margin: 20px auto !important;\r\n                padding: 15px !important;\r\n                border-radius: 5px !important;\r\n            }\r\n            .turning-calculator .formula {\r\n                font-size: 0.9em;\r\n            }\r\n            .turning-calculator .explanation {\r\n                padding: 10px;\r\n            }\r\n            .turning-calculator .example {\r\n                flex-direction: column;\r\n                gap: 10px;\r\n                text-align: center;\r\n            }\r\n            .turning-calculator .diagram {\r\n                order: -1;\r\n                width: 100%;\r\n            }\r\n            .turning-calculator .diagram img {\r\n                max-width: 250px;\r\n                margin: 0 auto;\r\n            }\r\n            .turning-calculator .params {\r\n                flex-direction: column;\r\n                gap: 10px;\r\n            }\r\n            .turning-calculator .param {\r\n                flex: none;\r\n            }\r\n            .turning-calculator button, .turning-calculator input[type=\"number\"], .turning-calculator .units-select {\r\n                font-size: 16px; \/* Prevents zoom on iOS *\/\r\n            }\r\n        }\r\n    <\/style>\r\n    <h1>Turning Cutting Speed (vc), Feed (f) & Cutting Time (Tc) Calculator<\/h1>\r\n    \r\n    <label for=\"units\">Units:<\/label>\r\n    <select id=\"units\" class=\"units-select\">\r\n        <option value=\"metric\">Metric (mm, m\/min)<\/option>\r\n        <option value=\"imperial\">Imperial (inches, ft\/min)<\/option>\r\n    <\/select>\r\n    \r\n    <div class=\"formula\" id=\"formula-vc\">Formula: vc = (\u03c0 \u00d7 Dm \u00d7 n) \/ 1000<\/div>\r\n    <div class=\"formula\" id=\"formula-f\">Formula: f = I \/ n<\/div>\r\n    <div class=\"formula\" id=\"formula-tc\">Formula: Tc = lm \/ I<\/div>\r\n    \r\n    <button class=\"sample-btn\" onclick=\"loadSample()\">Load Sample Values<\/button>\r\n    \r\n    <div class=\"section\">\r\n        <h3>Cutting Speed (vc) Calculation<\/h3>\r\n        <label for=\"diameter\" id=\"diameter-label\">Dm (mm): Workpiece Diameter<\/label>\r\n        <input type=\"number\" id=\"diameter\" placeholder=\"e.g., 50\" step=\"0.01\" required>\r\n        \r\n        <label for=\"n\">n (min\u207b\u00b9): Main Axis Spindle Speed<\/label>\r\n        <input type=\"number\" id=\"n\" placeholder=\"e.g., 955\" step=\"0.01\" required>\r\n        \r\n        <button onclick=\"calculateVc()\">Calculate vc<\/button>\r\n        \r\n        <div id=\"result-vc\"><\/div>\r\n    <\/div>\r\n    \r\n    <div class=\"section\">\r\n        <h3>Feed per Revolution (f) Calculation<\/h3>\r\n        <label for=\"feed-rate\">I (mm\/min): Feed Rate \/ Cutting Length per Min.<\/label>\r\n        <input type=\"number\" id=\"feed-rate\" placeholder=\"e.g., 286.5\" step=\"0.01\" required>\r\n        \r\n        <label for=\"n-feed\">n (min\u207b\u00b9): Main Axis Spindle Speed (reuse from above)<\/label>\r\n        <input type=\"number\" id=\"n-feed\" placeholder=\"e.g., 955\" step=\"0.01\" required>\r\n        \r\n        <button onclick=\"calculateF()\">Calculate f<\/button>\r\n        \r\n        <div id=\"result-f\"><\/div>\r\n    <\/div>\r\n    \r\n    <div class=\"section\">\r\n        <h3>Cutting Time (Tc) Calculation<\/h3>\r\n        <label for=\"workpiece-length\">lm (mm): Workpiece Length<\/label>\r\n        <input type=\"number\" id=\"workpiece-length\" placeholder=\"e.g., 200\" step=\"0.01\" required>\r\n        \r\n        <label for=\"feed-rate-tc\">I (mm\/min): Feed Rate \/ Cutting Length per Min. (reuse from above)<\/label>\r\n        <input type=\"number\" id=\"feed-rate-tc\" placeholder=\"e.g., 286.5\" step=\"0.01\" required>\r\n        \r\n        <button onclick=\"calculateTc()\">Calculate Tc<\/button>\r\n        \r\n        <div id=\"result-tc\"><\/div>\r\n    <\/div>\r\n\r\n    <div class=\"note\" id=\"note-metric\">\r\n        \u203b vc: Divide by 1000 to change to m from mm. f & Tc: Uses shared n\/I where applicable.\r\n    <\/div>\r\n    <div class=\"note\" id=\"note-imperial\" style=\"display: none;\">\r\n        \u203b vc: Divide by 12 to change to ft from inches. f: in\/rev = I (in\/min) \/ n. Tc: min = L (in) \/ I (in\/min).\r\n    <\/div>\r\n\r\n    <div class=\"explanation\">\r\n        <h2>Parameter Details<\/h2>\r\n        <div class=\"params\">\r\n            <div class=\"param\">\r\n                <strong>vc<\/strong><br>\r\n                <span id=\"vc-unit\">m\/min<\/span><br>\r\n                Cutting Speed\r\n            <\/div>\r\n            <div class=\"param\">\r\n                <strong>f<\/strong><br>\r\n                <span id=\"f-unit\">mm\/rev<\/span><br>\r\n                Feed per Revolution\r\n            <\/div>\r\n            <div class=\"param\">\r\n                <strong>Tc<\/strong><br>\r\n                <span id=\"tc-unit\">min<\/span><br>\r\n                Cutting Time\r\n            <\/div>\r\n            <div class=\"param\">\r\n                <strong>D \/ Dm<\/strong><br>\r\n                <span id=\"d-unit\">mm<\/span><br>\r\n                Workpiece Diameter\r\n            <\/div>\r\n            <div class=\"param\">\r\n                <strong>lm<\/strong><br>\r\n                <span id=\"lm-unit\">mm<\/span><br>\r\n                Workpiece Length\r\n            <\/div>\r\n            <div class=\"param\">\r\n                <strong>I<\/strong><br>\r\n                <span id=\"i-unit\">mm\/min<\/span><br>\r\n                Feed Rate\r\n            <\/div>\r\n            <div class=\"param\">\r\n                <strong>n (min\u207b\u00b9)<\/strong><br>\r\n                Main Axis Spindle Speed\r\n            <\/div>\r\n        <\/div>\r\n        <p><em>This calculator uses \u03c0 \u2248 3.14 for vc. For more precision, actual values may vary slightly.<\/em><\/p>\r\n\r\n        <h3>Sample Calculation<\/h3>\r\n        <div class=\"example\">\r\n            <div class=\"diagram\">\r\n                <img decoding=\"async\" src=\"http:\/\/onmytoolings.com\/wp-content\/uploads\/2025\/11\/for1_im_vc.png\" alt=\"Diagram illustrating basic concepts of speeds and feeds in lathe turning operation showing spindle speed and cutting speed concepts\">\r\n                <p style=\"font-size: 12px; color: #666; margin-top: 5px;\">Diagram illustrating basic concepts of speeds and feeds in lathe turning<\/p>\r\n            <\/div>\r\n            <div class=\"example-text\">\r\n                <div class=\"metric-sample active\">\r\n                    <p><strong>Scenario (Metric):<\/strong> Turning a 50 mm diameter, 200 mm long steel workpiece with carbide tool at n = 955 min\u207b\u00b9 and I = 286.5 mm\/min.<\/p>\r\n                    <p><strong>vc Step-by-Step:<\/strong><\/p>\r\n                    <ul style=\"line-height: 1.6;\">\r\n                        <li>\u03c0 \u00d7 Dm \u00d7 n = 3.14 \u00d7 50 \u00d7 955 \u2248 149,735<\/li>\r\n                        <li>Divide by 1000: 149,735 \/ 1000 = 149.74 m\/min<\/li>\r\n                        <li>vc \u2248 150 m\/min.<\/li>\r\n                    <\/ul>\r\n                    <p><strong>f Step-by-Step:<\/strong><\/p>\r\n                    <ul style=\"line-height: 1.6;\">\r\n                        <li>f = I \/ n = 286.5 \/ 955 \u2248 0.30 mm\/rev<\/li>\r\n                    <\/ul>\r\n                    <p><strong>Tc Step-by-Step:<\/strong><\/p>\r\n                    <ul style=\"line-height: 1.6;\">\r\n                        <li>Tc = lm \/ I = 200 \/ 286.5 \u2248 0.70 min<\/li>\r\n                    <\/ul>\r\n                <\/div>\r\n                <div class=\"imperial-sample\">\r\n                    <p><strong>Scenario (Imperial):<\/strong> Turning a 2 inch diameter, 7.87 inch long steel workpiece at n = 940 rpm and I = 11.27 in\/min.<\/p>\r\n                    <p><strong>vc Step-by-Step:<\/strong><\/p>\r\n                    <ul style=\"line-height: 1.6;\">\r\n                        <li>\u03c0 \u00d7 D \u00d7 n = 3.14 \u00d7 2 \u00d7 940 \u2248 5,904<\/li>\r\n                        <li>Divide by 12: 5,904 \/ 12 \u2248 492 ft\/min<\/li>\r\n                        <li>vc \u2248 492 ft\/min (~150 m\/min).<\/li>\r\n                    <\/ul>\r\n                    <p><strong>f Step-by-Step:<\/strong><\/p>\r\n                    <ul style=\"line-height: 1.6;\">\r\n                        <li>f = I \/ n = 11.27 \/ 940 \u2248 0.012 in\/rev<\/li>\r\n                    <\/ul>\r\n                    <p><strong>Tc Step-by-Step:<\/strong><\/p>\r\n                    <ul style=\"line-height: 1.6;\">\r\n                        <li>Tc = L \/ I = 7.87 \/ 11.27 \u2248 0.70 min<\/li>\r\n                    <\/ul>\r\n                <\/div>\r\n                <p>Click \"Load Sample Values\" to fill in the inputs and see it in action!<\/p>\r\n            <\/div>\r\n        <\/div>\r\n    <\/div>\r\n\r\n    <script>\r\n        const unitsSelect = document.querySelector('.turning-calculator #units');\r\n        const formulaVcDiv = document.querySelector('.turning-calculator #formula-vc');\r\n        const formulaFDiv = document.querySelector('.turning-calculator #formula-f');\r\n        const formulaTcDiv = document.querySelector('.turning-calculator #formula-tc');\r\n        const diameterLabel = document.querySelector('.turning-calculator #diameter-label');\r\n        const diameterInput = document.querySelector('.turning-calculator #diameter');\r\n        const vcUnitSpan = document.querySelector('.turning-calculator #vc-unit');\r\n        const fUnitSpan = document.querySelector('.turning-calculator #f-unit');\r\n        const tcUnitSpan = document.querySelector('.turning-calculator #tc-unit');\r\n        const dUnitSpan = document.querySelector('.turning-calculator #d-unit');\r\n        const lmUnitSpan = document.querySelector('.turning-calculator #lm-unit');\r\n        const iUnitSpan = document.querySelector('.turning-calculator #i-unit');\r\n        const noteMetric = document.querySelector('.turning-calculator #note-metric');\r\n        const noteImperial = document.querySelector('.turning-calculator #note-imperial');\r\n        const metricSample = document.querySelector('.turning-calculator .metric-sample');\r\n        const imperialSample = document.querySelector('.turning-calculator .imperial-sample');\r\n\r\n        function updateUI(unit) {\r\n            if (unit === 'metric') {\r\n                formulaVcDiv.textContent = 'Formula: vc = (\u03c0 \u00d7 Dm \u00d7 n) \/ 1000';\r\n                formulaFDiv.textContent = 'Formula: f = I \/ n';\r\n                formulaTcDiv.textContent = 'Formula: Tc = lm \/ I';\r\n                diameterLabel.textContent = 'Dm (mm): Workpiece Diameter';\r\n                diameterInput.placeholder = 'e.g., 50';\r\n                vcUnitSpan.textContent = 'm\/min';\r\n                fUnitSpan.textContent = 'mm\/rev';\r\n                tcUnitSpan.textContent = 'min';\r\n                dUnitSpan.textContent = 'mm';\r\n                lmUnitSpan.textContent = 'mm';\r\n                iUnitSpan.textContent = 'mm\/min';\r\n                document.querySelector('.turning-calculator #feed-rate').placeholder = 'e.g., 286.5';\r\n                document.querySelector('.turning-calculator #workpiece-length').placeholder = 'e.g., 200';\r\n                document.querySelector('.turning-calculator #feed-rate-tc').placeholder = 'e.g., 286.5';\r\n                noteMetric.style.display = 'block';\r\n                noteImperial.style.display = 'none';\r\n                metricSample.classList.add('active');\r\n                imperialSample.classList.remove('active');\r\n            } else { \/\/ imperial\r\n                formulaVcDiv.textContent = 'Formula: vc = (\u03c0 \u00d7 D \u00d7 n) \/ 12';\r\n                formulaFDiv.textContent = 'Formula: f = I \/ n';\r\n                formulaTcDiv.textContent = 'Formula: Tc = L \/ I';\r\n                diameterLabel.textContent = 'D (inches): Workpiece Diameter';\r\n                diameterInput.placeholder = 'e.g., 2';\r\n                vcUnitSpan.textContent = 'ft\/min';\r\n                fUnitSpan.textContent = 'in\/rev';\r\n                tcUnitSpan.textContent = 'min';\r\n                dUnitSpan.textContent = 'inches';\r\n                lmUnitSpan.textContent = 'inches';\r\n                iUnitSpan.textContent = 'in\/min';\r\n                document.querySelector('.turning-calculator #feed-rate').placeholder = 'e.g., 11.27';\r\n                document.querySelector('.turning-calculator #workpiece-length').placeholder = 'e.g., 7.87';\r\n                document.querySelector('.turning-calculator #feed-rate-tc').placeholder = 'e.g., 11.27';\r\n                noteMetric.style.display = 'none';\r\n                noteImperial.style.display = 'block';\r\n                metricSample.classList.remove('active');\r\n                imperialSample.classList.add('active');\r\n            }\r\n            document.querySelector('.turning-calculator #result-vc').innerHTML = ''; \/\/ Clear results\r\n            document.querySelector('.turning-calculator #result-f').innerHTML = '';\r\n            document.querySelector('.turning-calculator #result-tc').innerHTML = '';\r\n        }\r\n\r\n        unitsSelect.addEventListener('change', function() {\r\n            updateUI(this.value);\r\n        });\r\n\r\n        function calculateVc() {\r\n            const unit = unitsSelect.value;\r\n            const d = parseFloat(diameterInput.value);\r\n            const n = parseFloat(document.querySelector('.turning-calculator #n').value);\r\n            \r\n            if (isNaN(d) || isNaN(n) || d <= 0 || n <= 0) {\r\n                document.querySelector('.turning-calculator #result-vc').innerHTML = 'Please enter valid positive numbers!';\r\n                return;\r\n            }\r\n            \r\n            const pi = 3.14;\r\n            let vc;\r\n            if (unit === 'metric') {\r\n                vc = (pi * d * n) \/ 1000;\r\n                document.querySelector('.turning-calculator #result-vc').innerHTML = `Cutting Speed vc \u2248 ${vc.toFixed(2)} m\/min`;\r\n            } else {\r\n                vc = (pi * d * n) \/ 12;\r\n                document.querySelector('.turning-calculator #result-vc').innerHTML = `Cutting Speed vc \u2248 ${vc.toFixed(2)} ft\/min`;\r\n            }\r\n        }\r\n\r\n        function calculateF() {\r\n            const unit = unitsSelect.value;\r\n            const I = parseFloat(document.querySelector('.turning-calculator #feed-rate').value);\r\n            const n = parseFloat(document.querySelector('.turning-calculator #n-feed').value);\r\n            \r\n            if (isNaN(I) || isNaN(n) || I <= 0 || n <= 0) {\r\n                document.querySelector('.turning-calculator #result-f').innerHTML = 'Please enter valid positive numbers!';\r\n                return;\r\n            }\r\n            \r\n            const f = I \/ n;\r\n            if (unit === 'metric') {\r\n                document.querySelector('.turning-calculator #result-f').innerHTML = `Feed per Revolution f \u2248 ${f.toFixed(3)} mm\/rev`;\r\n            } else {\r\n                document.querySelector('.turning-calculator #result-f').innerHTML = `Feed per Revolution f \u2248 ${f.toFixed(3)} in\/rev`;\r\n            }\r\n        }\r\n\r\n        function calculateTc() {\r\n            const unit = unitsSelect.value;\r\n            const lm = parseFloat(document.querySelector('.turning-calculator #workpiece-length').value);\r\n            const I = parseFloat(document.querySelector('.turning-calculator #feed-rate-tc').value);\r\n            \r\n            if (isNaN(lm) || isNaN(I) || lm <= 0 || I <= 0) {\r\n                document.querySelector('.turning-calculator #result-tc').innerHTML = 'Please enter valid positive numbers!';\r\n                return;\r\n            }\r\n            \r\n            const tc = lm \/ I;\r\n            document.querySelector('.turning-calculator #result-tc').innerHTML = `Cutting Time Tc \u2248 ${tc.toFixed(2)} min`;\r\n        }\r\n\r\n        function loadSample() {\r\n            const unit = unitsSelect.value;\r\n            if (unit === 'metric') {\r\n                diameterInput.value = 50;\r\n                document.querySelector('.turning-calculator #n').value = 955;\r\n                document.querySelector('.turning-calculator #n-feed').value = 955;\r\n                document.querySelector('.turning-calculator #feed-rate').value = 286.5;\r\n                document.querySelector('.turning-calculator #workpiece-length').value = 200;\r\n                document.querySelector('.turning-calculator #feed-rate-tc').value = 286.5;\r\n            } else {\r\n                diameterInput.value = 2;\r\n                document.querySelector('.turning-calculator #n').value = 940;\r\n                document.querySelector('.turning-calculator #n-feed').value = 940;\r\n                document.querySelector('.turning-calculator #feed-rate').value = 11.27;\r\n                document.querySelector('.turning-calculator #workpiece-length').value = 7.87;\r\n                document.querySelector('.turning-calculator #feed-rate-tc').value = 11.27;\r\n            }\r\n            document.querySelector('.turning-calculator #result-vc').innerHTML = ''; \/\/ Clear previous results\r\n            document.querySelector('.turning-calculator #result-f').innerHTML = '';\r\n            document.querySelector('.turning-calculator #result-tc').innerHTML = '';\r\n        }\r\n\r\n        \/\/ Initialize\r\n        updateUI('metric');\r\n    <\/script>\r\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Turning Cutting Speed (vc), Feed (f) &#038; Cutting Time (Tc) Calculator Units: Metric (mm, m\/min)Imperial (inches, ft\/min) Formula: vc = (\u03c0 \u00d7 Dm \u00d7 n) \/ 1000 Formula: f = I \/ n Formula: Tc = lm \/ I Load Sample Values Cutting Speed (vc) Calculation Dm (mm): Workpiece Diameter n (min\u207b\u00b9): Main Axis Spindle [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":15030,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_uag_custom_page_level_css":"","site-sidebar-layout":"no-sidebar","site-content-layout":"page-builder","ast-site-content-layout":"full-width-container","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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Spindle...","_links":{"self":[{"href":"https:\/\/onmytoolings.com\/zh\/wp-json\/wp\/v2\/pages\/16521","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/onmytoolings.com\/zh\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/onmytoolings.com\/zh\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/onmytoolings.com\/zh\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/onmytoolings.com\/zh\/wp-json\/wp\/v2\/comments?post=16521"}],"version-history":[{"count":21,"href":"https:\/\/onmytoolings.com\/zh\/wp-json\/wp\/v2\/pages\/16521\/revisions"}],"predecessor-version":[{"id":16572,"href":"https:\/\/onmytoolings.com\/zh\/wp-json\/wp\/v2\/pages\/16521\/revisions\/16572"}],"up":[{"embeddable":true,"href":"https:\/\/onmytoolings.com\/zh\/wp-json\/wp\/v2\/pages\/15030"}],"wp:attachment":[{"href":"https:\/\/onmytoolings.com\/zh\/wp-json\/wp\/v2\/media?parent=16521"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}