{"id":4887,"date":"2026-11-10T18:00:00","date_gmt":"2026-11-11T02:00:00","guid":{"rendered":"https:\/\/www.graphitecutting.com\/?p=4887"},"modified":"2026-10-29T03:10:48","modified_gmt":"2026-10-29T10:10:48","slug":"graphite-block-cutting-yield-loss","status":"publish","type":"post","link":"https:\/\/www.graphitecutting.com\/ja\/graphite-block-cutting-yield-loss\/","title":{"rendered":"\u9ed2\u925b\u30d6\u30ed\u30c3\u30af\u5207\u65ad\u6b69\u7559\u307e\u308a\uff1a\u5207\u308a\u6e9d\u3001\u52a0\u5de5\u4ee3\u3001\u4e0d\u826f\u5728\u5eab\u306e\u5206\u96e2"},"content":{"rendered":"

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\u306e industrial graphite block cutting page<\/a> \u6750\u6599\u6e96\u5099\u3092\u5bfe\u8c61\u3068\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u306f\u3001\u4e00\u822c\u7684\u306a\u4e8b\u696d\u53ce\u76ca\u6027\u3084\u4e0b\u6d41\u306e\u30d7\u30ec\u30fc\u30c8\u6b69\u7559\u307e\u308a\u3067\u306f\u306a\u304f\u3001\u521d\u671f\u5206\u5272\u6642\u306e\u6750\u6599\u4f1a\u8a08\u306b\u7126\u70b9\u3092\u5f53\u3066\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n

\"Graphite
Figure 1. Large graphite stock and a separated section on supports.<\/figcaption><\/figure>\n\n\n\n

\u30b0\u30e9\u30d5\u30a1\u30a4\u30c8\u30d6\u30ed\u30c3\u30af\u5207\u65ad\u6b69\u7559\u307e\u308a\u306e\u5883\u754c\u3092\u5b9a\u7fa9\u3059\u308b<\/h2>\n\n\n\n

\u4e00\u8cab\u3057\u305f\u57fa\u6e96\u3092\u9078\u629e\u3057\u3066\u304f\u3060\u3055\u3044\uff1a\u4f53\u7a4d\u3001\u8cea\u91cf\u3001\u307e\u305f\u306f\u540c\u7b49\u30d6\u30e9\u30f3\u30af\u306e\u6570\u3002\u53d7\u3051\u5165\u308c\u3089\u308c\u305f\u51fa\u529b\u304c\u3001\u5207\u65ad\u6e08\u307f\u30d6\u30e9\u30f3\u30af\u307e\u305f\u306f\u5b8c\u6210\u90e8\u54c1\u3092\u610f\u5473\u3059\u308b\u304b\u3069\u3046\u304b\u3092\u8a18\u9332\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u4f53\u7a4d\u30d9\u30fc\u30b9\u306e\u30d6\u30e9\u30f3\u30af\u56de\u53ce\u7387\u3068\u3001\u6570\u30d9\u30fc\u30b9\u306e\u5b8c\u6210\u90e8\u54c1\u6b69\u7559\u307e\u308a\u3092\u6bd4\u8f03\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002.<\/p>\n\n\n\n

\u8cea\u91cf\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\u306f\u3001\u6750\u6599\u3068\u6e2c\u5b9a\u57fa\u6e96\u3092\u7279\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u4f53\u7a4d\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\u306f\u3001\u4f53\u7a4d\u3092\u8a08\u7b97\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3057\u305f\u5bf8\u6cd5\u3092\u5b9a\u7fa9\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u516c\u79f0\u306e\u6750\u6599\u30a8\u30f3\u30d9\u30ed\u30fc\u30d7\u306f\u3001\u640d\u50b7\u3057\u305f\u89d2\u3084\u4e0d\u898f\u5247\u306a\u8868\u9762\u306e\u5468\u308a\u306b\u6b8b\u308b\u5b9f\u969b\u306e\u6750\u6599\u3092\u8868\u3055\u306a\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n

\u30b8\u30e7\u30d6\u3092\u6bd4\u8f03\u3059\u308b\u969b\u306b\u3001\u30b0\u30ec\u30fc\u30c9\u306e\u540c\u4e00\u6027\u3092\u7dad\u6301\u3057\u3066\u304f\u3060\u3055\u3044\u3002. SGL Carbon \u306f\u3001\u305d\u306e\u7b49\u65b9\u6027\u30b0\u30e9\u30d5\u30a1\u30a4\u30c8\u30b0\u30ec\u30fc\u30c9\u3092\u533a\u5225\u3057\u3066\u3044\u307e\u3059\u3002<\/a>. \u5e7e\u4f55\u5b66\u7684\u306a\u6bd4\u8f03\u3092\u3001\u95a2\u9023\u3059\u308b\u30b0\u30ec\u30fc\u30c9\u3068\u8cfc\u5165\u57fa\u6e96\u3092\u78ba\u8a8d\u305b\u305a\u306b\u6750\u6599\u30b3\u30b9\u30c8\u306e\u4e3b\u5f35\u306b\u7ffb\u8a33\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002.<\/p>\n\n\n\n

\u56de\u53ce\u53ef\u80fd\u306a\u6b8b\u6750\u3092\u53d7\u3051\u5165\u308c\u3089\u308c\u305f\u30d6\u30e9\u30f3\u30af\u3068\u306f\u5225\u306b\u4fdd\u7ba1\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u6709\u7528\u306a\u6b8b\u6750\u306f\u5c06\u6765\u7684\u306a\u4fa1\u5024\u3092\u6301\u3064\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u5b9a\u7fa9\u3055\u308c\u305f\u7528\u9014\u3068\u53d7\u3051\u5165\u308c\u6761\u4ef6\u3092\u6e80\u305f\u3059\u307e\u3067\u3001\u73fe\u5728\u306e\u6ce8\u6587\u51fa\u529b\u306b\u306f\u306a\u308a\u307e\u305b\u3093\u3002.<\/p>\n\n\n\n

\u6750\u6599\u640d\u5931\u3092\u6709\u7528\u306a\u30ab\u30c6\u30b4\u30ea\u306b\u5206\u985e\u3059\u308b<\/h2>\n\n\n\n

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Allowance deserves particular care. Material reserved for finishing is part of the as-cut blank, not kerf loss. When assessing finished-part recovery, the portion later removed belongs to a downstream operation.<\/p>\n\n\n\n

Do not count a whole rectangular bounding box as recovered material if only an irregular portion is usable. Likewise, do not discard every small remnant automatically. Define the dimensions, condition and storage rules that make an offcut reusable in your operation.<\/p>\n\n\n\n

For graphite block cutting yield, use the categories to explain the result, not just to produce a favorable total. A meaningful improvement can then be linked to a change in layout, cut count, allowance or acceptance.<\/p>\n\n\n\n

A Clearly Labeled Layout Calculation<\/h2>\n\n\n\n
\"Graphite
Figure 2. A graphite workpiece and a separated piece on the machine table; no material recovery percentage is established.<\/figcaption><\/figure>\n\n\n\n

Consider an illustrative one-dimensional division problem, not a Vimfun test. A 500 mm stock dimension is to supply 70 mm blanks. Assume seven blanks and six separating kerfs, each 0.8 mm wide, with no end trim for this simplified calculation.<\/p>\n\n\n\n

Required length is `7 \u00d7 70 + 6 \u00d7 0.8 = 494.8 mm`, leaving 5.2 mm in that direction. Blank length allocation is 490 mm. The calculation says the nominal arrangement fits; it says nothing about real cut accuracy or whether the remainder is useful.<\/p>\n\n\n\n

Now assume 1 mm of finishing stock on each side along that dimension. Each blank becomes 72 mm before finishing. The same arrangement would require `7 \u00d7 72 + 6 \u00d7 0.8 = 508.8 mm`, so it no longer fits in 500 mm.<\/p>\n\n\n\n

Illustrative condition<\/th>Required stock length<\/th>Outcome<\/th><\/tr><\/thead>
Seven 70 mm blanks; six assumed 0.8 mm kerfs<\/td>494.8 mm<\/td>Nominally fits before other allowances<\/td><\/tr>
Seven 72 mm blanks; same assumed kerfs<\/td>508.8 mm<\/td>Does not fit<\/td><\/tr>
Real production layout<\/td>Requires measured inputs<\/td>Check trim, geometry and acceptance<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Here 0.8 mm is an assumed kerf for arithmetic. Wire diameter is not automatically the measured kerf. Keep that distinction explicit when replacing assumptions with trial data.<\/p>\n\n\n\n

Improve Graphite Block Cutting Yield Through the Layout<\/h2>\n\n\n\n

Start by mapping required blank sizes and orientation constraints. Consider whether a different division order produces usable remnants rather than narrow scrap. Review the support and handling consequences before accepting a denser layout.<\/p>\n\n\n\n

Avoid using nominal cut positions without checking their tolerance and the actual stock envelope. A layout that fits exactly on paper can fail once edge trim, locating stock or a required cleanup pass is included.<\/p>\n\n\n\n

Reduce unnecessary cuts where the geometry allows, but compare the resulting blank condition. A saved pass can create a less useful reference or a difficult remaining section. Keep production practicality in the same review as recovery.<\/p>\n\n\n\n

\u4f7f\u7528 low-kerf graphite cutting guide<\/a> for cut-width economics. The block-specific decision here is whether the complete initial layout produces accepted blanks and usable remnants.<\/p>\n\n\n\n

Video: Stock division and handling context<\/h3>\n\n\n\n