{"id":25097,"date":"2026-11-10T06:29:16","date_gmt":"2026-11-10T06:29:16","guid":{"rendered":"https:\/\/www.mechstream.com\/?p=25097"},"modified":"2026-11-10T07:34:35","modified_gmt":"2026-11-10T07:34:35","slug":"welding-heat-input-calculator","status":"publish","type":"post","link":"https:\/\/www.mechstream.com\/pt\/welding-heat-input-calculator\/","title":{"rendered":"Welding Heat Input Calculator"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">The Welding Heat Input Calculator estimates heat input per unit length using arc voltage, welding current, travel speed, and process efficiency. Convert results into kJ\/mm, kJ\/cm, or J\/mm to support welding process planning and parameter comparison. Use this calculator as a reference estimate; actual heat input depends on the welding process and procedure.<\/p>\n\n\n\n<!-- Welding Heat Input Calculator (scoped embed) --><style>#whic, #whic * { all: revert; box-sizing: border-box; } #whic [hidden] { display: none !important; } #whic { --ink: #1c1d1f; --muted: #5a5d63; --line: #d6dbe3; --field-bg: #f3f5f8; --surface: #ffffff; --accent: #1d4ed8; --accent-ink: #ffffff; --accent-soft: #eef3ff; --error: #b42318; --error-soft: #fdecea; --focus: #1e40af; display: block; max-width: 640px; margin: 24px auto; padding: 0; color: var(--ink); text-align: left; font: 16px\/1.55 system-ui, -apple-system, Segoe UI, Roboto, Helvetica Neue, Arial, sans-serif; } #whic .whic-card { display: block; background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 22px; margin: 0 0 20px; } #whic fieldset { border: 0; margin: 0; padding: 0; min-width: 0; } #whic legend { display: block; font-weight: 700; font-size: 17px; margin: 0 0 14px; padding: 0; color: var(--ink); } #whic .whic-field { margin: 0 0 16px; } #whic label { display: block; font-weight: 600; margin: 0 0 6px; color: var(--ink); font-size: 16px; } #whic .whic-control { display: flex; align-items: stretch; margin: 0; } #whic input, #whic select { font: inherit; font-size: 16px; color: var(--ink); background: var(--surface); border: 1px solid var(--line); padding: 10px 12px; min-height: 44px; height: auto; margin: 0; box-shadow: none; } #whic input { flex: 1; min-width: 0; width: auto; border-radius: 8px 0 0 8px; } #whic .whic-unit { display: flex; align-items: center; justify-content: center; min-width: 64px; padding: 0 14px; border: 1px solid var(--line); border-left: 0; border-radius: 0 8px 8px 0; background: var(--field-bg); color: var(--muted); font-weight: 600; } #whic select { border-left: 0; border-radius: 0 8px 8px 0; background: var(--field-bg); font-weight: 600; cursor: pointer; width: auto; } #whic input:focus-visible, #whic select:focus-visible, #whic button:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; } #whic .whic-field[data-invalid=true] input { border-color: var(--error); background: var(--error-soft); } #whic .whic-hint { display: block; margin: 6px 0 0; color: var(--muted); font-size: 14px; } #whic .whic-err { display: none; margin: 6px 0 0; color: var(--error); font-size: 14px; font-weight: 600; } #whic .whic-field[data-invalid=true] .whic-err { display: block; } #whic .whic-form-error { display: block; margin: 0 0 14px; padding: 10px 12px; border-radius: 8px; background: var(--error-soft); color: var(--error); font-weight: 600; font-size: 15px; } #whic .whic-actions { display: flex; justify-content: center; margin: 8px 0 0; } #whic button { font: inherit; font-size: 16px; font-weight: 700; min-height: 44px; min-width: 160px; padding: 10px 24px; margin: 0; border-radius: 8px; cursor: pointer; border: 1px solid transparent; background: var(--accent); color: var(--accent-ink); text-transform: none; letter-spacing: normal; box-shadow: none; } #whic button:hover { filter: brightness(1.1); } #whic h2 { display: block; margin: 0 0 4px; padding: 0; font-size: 17px; font-weight: 700; line-height: 1.4; color: var(--ink); } #whic .whic-sub { margin: 0 0 16px; color: var(--muted); font-size: 15px; } #whic ul { list-style: none; margin: 0; padding: 0; } #whic li { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; margin: 0; padding: 12px 0; border-top: 1px solid var(--line); } #whic .whic-label { color: var(--muted); font-size: 15px; } #whic .whic-value { font-variant-numeric: tabular-nums; font-weight: 700; font-size: 18px; text-align: right; white-space: nowrap; color: var(--ink); } #whic .whic-value small { font-weight: 600; color: var(--muted); font-size: 13px; margin-left: 4px; } #whic li.whic-primary { background: var(--accent-soft); border-radius: 8px; padding: 14px; border-top: 0; margin: 0 0 6px; } #whic li.whic-primary .whic-value { font-size: 26px; color: var(--accent); } #whic li.whic-primary + li { border-top: 0; } #whic .whic-note { margin: 14px 0 0; padding: 0 0 0 10px; font-size: 14px; color: var(--muted); border-left: 3px solid var(--accent); }<\/style><div id=\"whic\"><form id=\"whic-form\" class=\"whic-card\" novalidate><fieldset><legend>Welding parameters<\/legend><p id=\"whic-form-error\" class=\"whic-form-error\" role=\"alert\" hidden><\/p><div class=\"whic-field\" id=\"whic-f-voltage\"><label for=\"whic-voltage\">Arc voltage<\/label><div class=\"whic-control\"><input id=\"whic-voltage\" type=\"number\" inputmode=\"decimal\" min=\"0\" step=\"any\" required placeholder=\"e.g. 24\" aria-describedby=\"whic-voltage-err\"><span class=\"whic-unit\" aria-hidden=\"true\">V<\/span><\/div><span class=\"whic-err\" id=\"whic-voltage-err\"><\/span><\/div><div class=\"whic-field\" id=\"whic-f-current\"><label for=\"whic-current\">Welding current<\/label><div class=\"whic-control\"><input id=\"whic-current\" type=\"number\" inputmode=\"decimal\" min=\"0\" step=\"any\" required placeholder=\"e.g. 200\" aria-describedby=\"whic-current-err\"><span class=\"whic-unit\" aria-hidden=\"true\">A<\/span><\/div><span class=\"whic-err\" id=\"whic-current-err\"><\/span><\/div><div class=\"whic-field\" id=\"whic-f-speed\"><label for=\"whic-speed\">Travel speed<\/label><div class=\"whic-control\"><input id=\"whic-speed\" type=\"number\" inputmode=\"decimal\" min=\"0\" step=\"any\" required placeholder=\"e.g. 300\" aria-describedby=\"whic-speed-err\"><select id=\"whic-speed-unit\" aria-label=\"Travel speed unit\"><option value=\"mm_min\">mm\/min<\/option><option value=\"cm_min\">cm\/min<\/option><option value=\"m_min\">m\/min<\/option><option value=\"in_min\">in\/min<\/option><\/select><\/div><span class=\"whic-err\" id=\"whic-speed-err\"><\/span><\/div><div class=\"whic-field\" id=\"whic-f-efficiency\"><label for=\"whic-efficiency\">Process thermal efficiency<\/label><div class=\"whic-control\"><input id=\"whic-efficiency\" type=\"number\" inputmode=\"decimal\" min=\"1\" max=\"100\" step=\"any\" value=\"80\" required aria-describedby=\"whic-efficiency-hint whic-efficiency-err\"><span class=\"whic-unit\" aria-hidden=\"true\">%<\/span><\/div><small class=\"whic-hint\" id=\"whic-efficiency-hint\">Enter an efficiency value appropriate for the welding process. Do not assume a universal value. Allowed range: 1\u2013100%.<\/small><span class=\"whic-err\" id=\"whic-efficiency-err\"><\/span><\/div><\/fieldset><div class=\"whic-actions\"><button type=\"submit\">Calculate<\/button><\/div><\/form><div class=\"whic-card\" id=\"whic-results\" aria-live=\"polite\" role=\"status\" hidden><h2>Results<\/h2><p class=\"whic-sub\" id=\"whic-result-sub\"><\/p><ul><li class=\"whic-primary\"><span class=\"whic-label\">Estimated heat input<\/span><span class=\"whic-value\" id=\"whic-r-kjmm\"><\/span><\/li><li><span class=\"whic-label\">Estimated heat input<\/span><span class=\"whic-value\" id=\"whic-r-kjcm\"><\/span><\/li><li><span class=\"whic-label\">Estimated heat input<\/span><span class=\"whic-value\" id=\"whic-r-jmm\"><\/span><\/li><li><span class=\"whic-label\">Travel speed (converted)<\/span><span class=\"whic-value\" id=\"whic-r-speed\"><\/span><\/li><\/ul><p class=\"whic-note\">Results are estimates of arc heat input only. They do not replace a qualified welding procedure.<\/p><\/div><\/div><script>(function(){var 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Convert results into kJ\/mm,&#8230;<\/p>","protected":false},"author":2,"featured_media":25098,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"pmpro_default_level":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_hide_featured_image":false,"_jetpack_featured_image_duplicate_dismissed":0,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[8808],"tags":[8851,8853,8793,8852],"class_list":["post-25097","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-manufacturing-and-processes","tag-heat-input","tag-weld-planning","tag-welding-calculator","tag-welding-parameters","pmpro-has-access"],"acf":[],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/www.mechstream.com\/wp-content\/uploads\/2026\/11\/Welding-Heat-Input-Calculator.png","_links":{"self":[{"href":"https:\/\/www.mechstream.com\/pt\/wp-json\/wp\/v2\/posts\/25097","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.mechstream.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.mechstream.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.mechstream.com\/pt\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.mechstream.com\/pt\/wp-json\/wp\/v2\/comments?post=25097"}],"version-history":[{"count":2,"href":"https:\/\/www.mechstream.com\/pt\/wp-json\/wp\/v2\/posts\/25097\/revisions"}],"predecessor-version":[{"id":25100,"href":"https:\/\/www.mechstream.com\/pt\/wp-json\/wp\/v2\/posts\/25097\/revisions\/25100"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.mechstream.com\/pt\/wp-json\/wp\/v2\/media\/25098"}],"wp:attachment":[{"href":"https:\/\/www.mechstream.com\/pt\/wp-json\/wp\/v2\/media?parent=25097"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.mechstream.com\/pt\/wp-json\/wp\/v2\/categories?post=25097"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.mechstream.com\/pt\/wp-json\/wp\/v2\/tags?post=25097"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}