{"id":13952,"date":"2026-08-05T06:10:36","date_gmt":"2026-08-05T06:10:36","guid":{"rendered":"https:\/\/hlh-js.com\/?p=13952"},"modified":"2026-08-05T06:10:36","modified_gmt":"2026-08-05T06:10:36","slug":"reducing-staircase-effect-and-layer-line-roughness-on-titanium-slm-parts-with-abrasive-finishing","status":"publish","type":"post","link":"https:\/\/hlh-js.com\/ru\/resource\/\u0431\u043b\u043e\u0433\/reducing-staircase-effect-and-layer-line-roughness-on-titanium-slm-parts-with-abrasive-finishing\/","title":{"rendered":"Reducing Staircase Effect and Layer-Line Roughness on Titanium SLM Parts with Abrasive Finishing"},"content":{"rendered":"<!-- hlh-tis-c03.html | Jiangsu Henglihong Technology Co., Ltd. | August 2026 -->\n<style>\n.hlh-tis*,.hlh-tis*::before,.hlh-tis*::after{box-sizing:border-box;margin:0;padding:0}\n.hlh-tis{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica 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orientation-specific blast parameters.\",\n            \"url\": \"https:\\\/\\\/hlh-js.com\\\/resource\\\/blog\\\/reducing-staircase-effect-and-layer-line-roughness-on-titanium-slm-parts-with-abrasive-finishing\\\/\",\n            \"author\": {\n                \"@type\": \"Organization\",\n                \"name\": \"Jiangsu Henglihong Technology Co., Ltd.\",\n                \"url\": \"https:\\\/\\\/hlh-js.com\"\n            },\n            \"publisher\": {\n                \"@type\": \"Organization\",\n                \"name\": \"Jiangsu Henglihong Technology Co., Ltd.\",\n                \"url\": \"https:\\\/\\\/hlh-js.com\"\n            },\n            \"datePublished\": \"2026-08-01\",\n            \"dateModified\": \"2026-08-01\"\n        },\n        {\n            \"@type\": \"FAQPage\",\n            \"mainEntity\": [\n                {\n                    \"@type\": \"Question\",\n                    \"name\": \"Can abrasive blasting alone reduce Ra below 1 \\u03bcm on titanium SLM parts?\",\n                    \"acceptedAnswer\": {\n                        \"@type\": \"Answer\",\n                        \"text\": \"Reaching Ra below 1 \\u03bcm by blasting alone on titanium SLM parts is possible but difficult to sustain in production. With fine zirconia or glass beads in the mesh 220\\u2013320 range at 20\\u201340 PSI in a wet blast process, Ra values of 0.4\\u20130.8 \\u03bcm can be achieved on upskin and near-vertical surfaces. On heavily staircased downskin surfaces, the physical limit set by the blast crater size typically limits blasting to Ra 1.0\\u20131.5 \\u03bcm at best. For applications requiring Ra below 1 \\u03bcm on all surface types \\u2014 PVD coating preparation, precision DLC deposition \\u2014 a combination of blasting followed by vibratory finishing or electropolishing is typically required.\"\n                    }\n                },\n                {\n                    \"@type\": \"Question\",\n                    \"name\": \"How many blasting passes are needed to reduce Ra from 15 \\u03bcm to 3 \\u03bcm on a titanium SLM overhang surface?\",\n                    \"acceptedAnswer\": {\n                        \"@type\": \"Answer\",\n                        \"text\": \"For a mid-angle overhang surface (Ra 15 \\u03bcm as-built) using the two-stage protocol, expect: Stage 1 with Al\\u2082O\\u2083 grit 80 at 65 PSI \\u2014 3 to 5 passes to reduce Ra from 15 to 5\\u20138 \\u03bcm; Stage 2 with Al\\u2082O\\u2083 mesh 150 at 50 PSI \\u2014 2 to 4 passes to reduce from 5\\u20138 to 2\\u20134 \\u03bcm. Total: 5 to 9 passes across two stages. These estimates assume a traverse speed of 200 mm\\\/min and a fresh media charge. Worn media requires more passes; first-pass Ra reduction with worn media is typically 40\\u201360% of fresh media performance.\"\n                    }\n                },\n                {\n                    \"@type\": \"Question\",\n                    \"name\": \"Should I blast before or after heat treatment on titanium SLM parts?\",\n                    \"acceptedAnswer\": {\n                        \"@type\": \"Answer\",\n                        \"text\": \"In most cases, heat treatment should precede final abrasive finishing, for two reasons. First, stress relief annealing (typically 650\\u2013750\\u00b0C for Ti-6Al-4V in vacuum or inert atmosphere) may cause minor microstructural changes at the surface that affect the finished surface texture if blasting precedes annealing. Second, if HIP is used as a post-processing step (900\\u2013955\\u00b0C), the surface distortion from HIP consolidation changes the surface topography, making a pre-HIP final blast a wasted effort. The exception is the pre-HIP light satellite-removal blast, which is performed before HIP specifically to clear open pore mouths. Alpha-case removal should also occur before heat treatment if alpha-case is thermally induced, to minimize further oxygen ingress during heating.\"\n                    }\n                },\n                {\n                    \"@type\": \"Question\",\n                    \"name\": \"Does build layer thickness affect how aggressive the blasting needs to be?\",\n                    \"acceptedAnswer\": {\n                        \"@type\": \"Answer\",\n                        \"text\": \"Yes, directly. A thinner layer (30 \\u03bcm) produces a smaller staircase step height and a correspondingly lower as-built Ra than a thicker layer (60 \\u03bcm) at the same build angle. Practically: for parts built at 30 \\u03bcm layer thickness on a downskin surface at 45\\u00b0, as-built Ra is approximately 12\\u201315 \\u03bcm; at 60 \\u03bcm layer thickness on the same surface, as-built Ra is approximately 20\\u201328 \\u03bcm. The thicker-layer part requires a more aggressive Stage 1 blast (coarser grit, higher pressure, more passes) to achieve the same final Ra. If your build machine and material combination support thinner layers, the reduced staircase roughness directly reduces the finishing burden and may allow omission of Stage 1 for most surface types.\"\n                    }\n                }\n            ]\n        }\n    ]\n}<\/script>\n<div class=\"hlh-tis\">\n<a class=\"c-back\" href=\"https:\/\/hlh-js.com\/resource\/blog\/abrasive-finishing-titanium-slm-parts-complete-guide\/\" target=\"_blank\" rel=\"noopener noreferrer\">&#8592; Complete Guide: Abrasive Finishing for Titanium SLM Parts<\/a>\n<h1>Reducing Staircase Effect and Layer-Line Roughness on Titanium SLM Parts with Abrasive Finishing<\/h1>\n<div class=\"c-meta\">\n  <span><strong>\u041f\u043e \u0441\u0441\u044b\u043b\u043a\u0435<\/strong> \u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Jiangsu Henglihong Technology Co., Ltd.<\/span>\n  <span><strong>Updated:<\/strong> August 2026<\/span>\n  <span><strong>Topic:<\/strong> Titanium SLM staircase effect surface finish Ra reduction<\/span>\n<\/div>\n<p class=\"c-lead\">The staircase effect is the most visible surface defect on SLM titanium parts and the primary reason as-built Ra values of 5\u201320 \u03bcm are incompatible with most engineering specifications. It is also the most tractable: unlike alpha-case or embedded satellite particles, the staircase profile can be systematically reduced by a graded abrasive sequence without requiring chemical processing or specialized equipment. This guide explains the geometry behind staircase roughness, how to estimate the target material removal per surface type, and how to design a graded blasting sequence that achieves the required Ra efficiently.<\/p>\n<nav class=\"c-toc\" aria-label=\"Table of Contents\">\n  <div class=\"c-toc-title\">Table of Contents<\/div>\n  <ol>\n    <li><a href=\"#sec-physics\">The Physics of the Staircase Effect in SLM<\/a><\/li>\n    <li><a href=\"#sec-baseline\">As-Built Ra by Build Orientation: What to Expect<\/a><\/li>\n    <li><a href=\"#sec-strategy\">The Graded Blasting Strategy<\/a><\/li>\n    <li><a href=\"#sec-params\">Parameters by Surface Type: Upskin, Downskin, Vertical<\/a><\/li>\n    <li><a href=\"#sec-results\">Ra Reduction Benchmarks: What Is Achievable<\/a><\/li>\n    <li><a href=\"#sec-stop\">When to Stop: The Over-Blasting Risk<\/a><\/li>\n    <li><a href=\"#sec-faq\">\u0427\u0430\u0441\u0442\u043e \u0437\u0430\u0434\u0430\u0432\u0430\u0435\u043c\u044b\u0435 \u0432\u043e\u043f\u0440\u043e\u0441\u044b<\/a><\/li>\n  <\/ol>\n<\/nav>\n\n<h2 id=\"sec-physics\">1. The Physics of the Staircase Effect in SLM<\/h2>\n<p>In any layer-by-layer manufacturing process, surfaces that are neither horizontal nor perfectly vertical are approximated by a series of discrete steps, one per layer. In SLM, the layer thickness t is fixed for a given build (typically 30\u201360 &#956;m for titanium), and the step height at any angled surface equals the layer thickness. The width of each step depends on the build angle &#952; measured from the horizontal plane: step width = t \/ tan(&#952;). The resulting theoretical arithmetic mean roughness Ra of an untreated staircase surface can be estimated as:<\/p>\n<p><strong>Ra_theoretical &#8776; t &#215; cos(&#952;) \/ (2 &#215; sin(&#952;))<\/strong><\/p>\n<p>Substituting practical values: at t = 40 &#956;m and &#952; = 45&#176;, Ra_theoretical &#8776; 20 &#956;m. At &#952; = 75&#176;, Ra_theoretical &#8776; 5.4 &#956;m. At &#952; = 30&#176; (a shallower overhang), Ra_theoretical &#8776; 35 &#956;m. These theoretical values are for perfectly stepped geometry; actual measured Ra on SLM titanium is typically 60\u201380% of the theoretical value because the melt pool creates slightly rounded step edges rather than perfectly sharp corners.<\/p>\n<p>Critically, the staircase effect produces different Ra on different faces of the same part. A single titanium SLM bracket may have near-vertical walls with Ra 4\u20136 &#956;m, angled overhang faces with Ra 12\u201318 &#956;m, and horizontal top surfaces (upskin) with Ra 5\u20138 &#956;m. Effective abrasive finishing must be calibrated for each surface type \u2014 applying the same protocol across all faces will either under-process the rough downskin surfaces or over-process the cleaner near-vertical walls.<\/p>\n\n<h2 id=\"sec-baseline\">2. As-Built Ra by Build Orientation: What to Expect<\/h2>\n<div class=\"c-tbl\">\n<table>\n  <thead><tr><th>Surface Type<\/th><th>Build Angle (&#176; from horizontal)<\/th><th>Typical As-Built Ra<\/th><th>Typical As-Built Rz<\/th><\/tr><\/thead>\n  <tbody>\n    <tr><td>Upskin (top face)<\/td><td>90&#176; (horizontal)<\/td><td>4\u20138 &#956;m<\/td><td>25\u201350 &#956;m<\/td><\/tr>\n    <tr><td>Near-vertical wall<\/td><td>80\u201390&#176;<\/td><td>5\u201310 &#956;m<\/td><td>30\u201360 &#956;m<\/td><\/tr>\n    <tr><td>Mid-angle overhang<\/td><td>45\u201360&#176;<\/td><td>10\u201318 &#956;m<\/td><td>60\u2013110 &#956;m<\/td><\/tr>\n    <tr><td>Shallow overhang (downskin)<\/td><td>20\u201345&#176;<\/td><td>15\u201325 &#956;m<\/td><td>90\u2013150 &#956;m<\/td><\/tr>\n    <tr><td>Horizontal downfacing<\/td><td>0&#176; (ceiling)<\/td><td>18\u201330 &#956;m<\/td><td>100\u2013180 &#956;m<\/td><\/tr>\n  <\/tbody>\n<\/table>\n<\/div>\n<p>Note that downskin surfaces are rougher than theoretical estimates based on geometry alone. This occurs because the downfacing surface is supported by loose powder rather than solid material during the build, and partially melted powder particles bond to the underside of the melt pool as it solidifies, adding a layer of bonded-powder roughness on top of the geometric staircase. This combination of staircase steps and bonded-powder roughness is what produces Ra values of 18\u201330 &#956;m on horizontal downfacing surfaces, compared to the Ra 4\u20138 &#956;m found on the same part&#8217;s upskin faces.<\/p>\n\n<h2 id=\"sec-strategy\">3. The Graded Blasting Strategy<\/h2>\n<p>A graded blasting strategy uses progressively finer media and lower pressure across two or three stages to systematically reduce the as-built staircase profile. The logic is straightforward: coarser media removes more material per pass (needed for rough downskin surfaces) but leaves its own roughness footprint that must then be smoothed by a finer stage. Each stage&#8217;s parameters are calibrated to a specific material removal target, and the sequence ends when the surface Ra meets the application specification.<\/p>\n<p><strong>Stage 1 (roughness normalization):<\/strong> Angular Al&#8322;O&#8123; grit 80\u2013100 at 55\u201370 PSI. Targets the downskin and mid-angle surfaces where as-built Ra exceeds 10 &#956;m. This stage breaks down the tall staircase steps and bonded powder, converting the highly directional staircase profile into a more isotropic blasted topography. Target Ra after Stage 1: 4\u20138 &#956;m on all surface types. If upskin surfaces already meet the Stage 1 Ra target (they typically do), they can be skipped in Stage 1 to prevent unnecessary material removal.<\/p>\n<p><strong>Stage 2 (surface quality improvement):<\/strong> Fine Al&#8322;O&#8123; mesh 150\u2013180 or glass beads mesh 120\u2013150 at 40\u201355 PSI. Applied uniformly across all surface types after Stage 1 normalization, this stage reduces Ra from the 4\u20138 &#956;m range down to 1.5\u20134 &#956;m, depending on the media size and number of passes. This is the final stage for many industrial applications and serves as the preparation stage for aerospace shot peening.<\/p>\n<p><strong>Stage 3 (precision finish, application-specific):<\/strong> Fine glass beads or zirconia beads mesh 200\u2013280 at 25\u201345 PSI. For applications requiring Ra below 1.6 &#956;m \u2014 medical implants, PVD coating preparation, tight-tolerance aerospace surfaces \u2014 a third stage with fine spherical media achieves Ra 0.8\u20131.6 &#956;m from the 1.5\u20134 &#956;m range produced by Stage 2.<\/p>\n\n<h2 id=\"sec-params\">4. Parameters by Surface Type<\/h2>\n<div class=\"c-tbl\">\n<table>\n  <thead><tr><th>Surface Type<\/th><th>Stage 1 Media<\/th><th>Stage 1 PSI<\/th><th>Stage 2 Media<\/th><th>Stage 2 PSI<\/th><th>Target Ra (after S2)<\/th><\/tr><\/thead>\n  <tbody>\n    <tr><td>Upskin<\/td><td>Skip or Al&#8322;O&#8123; 100<\/td><td>50\u201360<\/td><td>Glass \/ Al&#8322;O&#8123; 150<\/td><td>40\u201350<\/td><td>1.5\u20132.5 &#956;m<\/td><\/tr>\n    <tr><td>Near-vertical wall<\/td><td>Al&#8322;O&#8123; 80\u2013100<\/td><td>55\u201365<\/td><td>Glass \/ Al&#8322;O&#8123; 150<\/td><td>40\u201355<\/td><td>1.5\u20133.0 &#956;m<\/td><\/tr>\n    <tr><td>Mid-angle (45\u201360&#176;)<\/td><td>Al&#8322;O&#8123; 80<\/td><td>60\u201370<\/td><td>Al&#8322;O&#8123; 150 \/ glass 120<\/td><td>45\u201360<\/td><td>2.0\u20134.0 &#956;m<\/td><\/tr>\n    <tr><td>Shallow overhang<\/td><td>Al&#8322;O&#8123; 60\u201380<\/td><td>65\u201375<\/td><td>Al&#8322;O&#8123; 120 \/ glass 120<\/td><td>50\u201365<\/td><td>2.5\u20135.0 &#956;m<\/td><\/tr>\n    <tr><td>Downfacing ceiling<\/td><td>Al&#8322;O&#8123; 60<\/td><td>70\u201380<\/td><td>Al&#8322;O&#8123; 120<\/td><td>55\u201365<\/td><td>3.0\u20136.0 &#956;m<\/td><\/tr>\n  <\/tbody>\n<\/table>\n<\/div>\n<p>Standoff distance: 150\u2013200 mm for all stages. Nozzle angle: 60\u201380&#176; to surface (perpendicular impact at 90&#176; drives embedment; angles below 45&#176; reduce cutting efficiency on staircase steps). Traverse speed should be consistent within each stage \u2014 typically 150\u2013250 mm\/min \u2014 to maintain uniform dwell time and coverage across each surface area.<\/p>\n\n<h2 id=\"sec-results\">5. Ra Reduction Benchmarks: What Is Achievable<\/h2>\n<p>With the three-stage graded protocol above, the following Ra reductions are achievable on Ti-6Al-4V SLM parts built at 30\u201360 &#956;m layer thickness:<\/p>\n<ul>\n  <li>Upskin surfaces: as-built Ra 5\u20138 &#956;m &#8594; after S2: Ra 0.8\u20131.5 &#956;m; after S3: Ra 0.4\u20130.8 &#956;m<\/li>\n  <li>Near-vertical walls: as-built Ra 6\u201310 &#956;m &#8594; after S2: Ra 1.0\u20132.0 &#956;m; after S3: Ra 0.6\u20131.0 &#956;m<\/li>\n  <li>Mid-angle (45\u201360&#176;): as-built Ra 10\u201318 &#956;m &#8594; after S2: Ra 2.0\u20134.0 &#956;m; after S3: Ra 1.0\u20132.0 &#956;m<\/li>\n  <li>Shallow overhang: as-built Ra 15\u201325 &#956;m &#8594; after S2: Ra 3.0\u20136.0 &#956;m; after S3: Ra 1.5\u20133.0 &#956;m<\/li>\n<\/ul>\n<p>These are achievable ranges, not guarantees. Actual outcome depends on machine-specific Ti powder quality, build parameters, layer thickness, and media condition. First-article trials are essential to confirm achievable Ra for each specific part and process combination. Surface roughness verification methods are discussed in detail in our guide on <a href=\"https:\/\/hlh-js.com\/resource\/blog\/surface-roughness-measurement-for-abrasively-finished-titanium-slm-parts-ra-sa-and-industry-specifications\/\" target=\"_blank\" rel=\"noopener noreferrer\">surface roughness measurement for abrasively finished titanium SLM parts<\/a>.<\/p>\n\n<h2 id=\"sec-stop\">6. When to Stop: The Over-Blasting Risk<\/h2>\n<p>Over-blasting is a common and costly error in titanium SLM surface finishing. Continuing to blast beyond the Ra target produces diminishing returns \u2014 Ra no longer decreases because the impact crater size from the blast media sets a physical lower limit on achievable roughness \u2014 while continuing to remove material from the part surface. On a precision component, this unnecessary material removal can push critical dimensions out of tolerance and invalidate all subsequent processing.<\/p>\n<p>The practical rule is: measure Ra after each stage and stop as soon as the target Ra specification is met. In-process Ra checks after Stage 2 are particularly important because Stage 2 is where most parts reach or approach the specification. If Stage 2 achieves the specification, Stage 3 is unnecessary and should be omitted. Additionally, note that blast media in poor condition (excessive fines from media breakdown) produces a finer effective Ra than fresh media of the same nominal size \u2014 monitor media condition by particle size distribution sampling and replace when the fines content (&#8810;40 &#956;m) exceeds 10% by weight, which typically occurs after 400\u2013600 cycles for Al&#8322;O&#8123; and 800\u20131,000 cycles for glass beads.<\/p>\n<div class=\"c-link\"><div class=\"c-link-ic\">&#8594;<\/div><p>For the complementary process of removing alpha-case that often coexists with heavy staircase roughness on the same surface, see our protocol for <a href=\"https:\/\/hlh-js.com\/resource\/blog\/alpha-case-removal-from-slm-titanium-parts-using-abrasive-blasting\/\" target=\"_blank\" rel=\"noopener noreferrer\">alpha-case removal from SLM titanium parts using abrasive blasting<\/a>.<\/p><\/div>\n\n<h2 id=\"sec-faq\">\u0427\u0430\u0441\u0442\u043e \u0437\u0430\u0434\u0430\u0432\u0430\u0435\u043c\u044b\u0435 \u0432\u043e\u043f\u0440\u043e\u0441\u044b<\/h2>\n<div class=\"c-faq\">\n  <div class=\"c-faq-item\">\n    <input type=\"checkbox\" id=\"faq03a\" class=\"c-faq-chk\">\n    <label class=\"c-faq-q\" for=\"faq03a\">Can abrasive blasting alone reduce Ra below 1 \u03bcm on titanium SLM parts?<span class=\"c-faq-ic\">+<\/span><\/label>\n    <div class=\"c-faq-a\"><p>Reaching Ra below 1 \u03bcm by blasting alone on titanium SLM parts is possible but difficult to sustain in production. With fine zirconia or glass beads in the mesh 220\u2013320 range at 20\u201340 PSI in a wet blast process, Ra values of 0.4\u20130.8 \u03bcm can be achieved on upskin and near-vertical surfaces. On heavily staircased downskin surfaces, the physical limit set by the blast crater size typically limits blasting to Ra 1.0\u20131.5 \u03bcm at best. For applications requiring Ra below 1 \u03bcm on all surface types \u2014 PVD coating preparation, precision DLC deposition \u2014 a combination of blasting followed by vibratory finishing or electropolishing is typically required.<\/p><\/div>\n  <\/div>\n  <div class=\"c-faq-item\">\n    <input type=\"checkbox\" id=\"faq03b\" class=\"c-faq-chk\">\n    <label class=\"c-faq-q\" for=\"faq03b\">How many blasting passes are needed to reduce Ra from 15 \u03bcm to 3 \u03bcm on a titanium SLM overhang surface?<span class=\"c-faq-ic\">+<\/span><\/label>\n    <div class=\"c-faq-a\"><p>For a mid-angle overhang surface (Ra 15 \u03bcm as-built) using the two-stage protocol, expect: Stage 1 with Al\u2082O\u2083 grit 80 at 65 PSI \u2014 3 to 5 passes to reduce Ra from 15 to 5\u20138 \u03bcm; Stage 2 with Al\u2082O\u2083 mesh 150 at 50 PSI \u2014 2 to 4 passes to reduce from 5\u20138 to 2\u20134 \u03bcm. Total: 5 to 9 passes across two stages. These estimates assume a traverse speed of 200 mm\/min and a fresh media charge. Worn media requires more passes; first-pass Ra reduction with worn media is typically 40\u201360% of fresh media performance.<\/p><\/div>\n  <\/div>\n  <div class=\"c-faq-item\">\n    <input type=\"checkbox\" id=\"faq03c\" class=\"c-faq-chk\">\n    <label class=\"c-faq-q\" for=\"faq03c\">Should I blast before or after heat treatment on titanium SLM parts?<span class=\"c-faq-ic\">+<\/span><\/label>\n    <div class=\"c-faq-a\"><p>In most cases, heat treatment should precede final abrasive finishing, for two reasons. First, stress relief annealing (typically 650\u2013750\u00b0C for Ti-6Al-4V in vacuum or inert atmosphere) may cause minor microstructural changes at the surface that affect the finished surface texture if blasting precedes annealing. Second, if HIP is used as a post-processing step (900\u2013955\u00b0C), the surface distortion from HIP consolidation changes the surface topography, making a pre-HIP final blast a wasted effort. The exception is the pre-HIP light satellite-removal blast, which is performed before HIP specifically to clear open pore mouths. Alpha-case removal should also occur before heat treatment if alpha-case is thermally induced, to minimize further oxygen ingress during heating.<\/p><\/div>\n  <\/div>\n  <div class=\"c-faq-item\">\n    <input type=\"checkbox\" id=\"faq03d\" class=\"c-faq-chk\">\n    <label class=\"c-faq-q\" for=\"faq03d\">Does build layer thickness affect how aggressive the blasting needs to be?<span class=\"c-faq-ic\">+<\/span><\/label>\n    <div class=\"c-faq-a\"><p>Yes, directly. A thinner layer (30 \u03bcm) produces a smaller staircase step height and a correspondingly lower as-built Ra than a thicker layer (60 \u03bcm) at the same build angle. Practically: for parts built at 30 \u03bcm layer thickness on a downskin surface at 45\u00b0, as-built Ra is approximately 12\u201315 \u03bcm; at 60 \u03bcm layer thickness on the same surface, as-built Ra is approximately 20\u201328 \u03bcm. The thicker-layer part requires a more aggressive Stage 1 blast (coarser grit, higher pressure, more passes) to achieve the same final Ra. If your build machine and material combination support thinner layers, the reduced staircase roughness directly reduces the finishing burden and may allow omission of Stage 1 for most surface types.<\/p><\/div>\n  <\/div>\n<\/div>\n<div class=\"c-cta\">\n  <h2>Need Specialist Abrasive Media for Titanium SLM Finishing?<\/h2>\n  <p>Jiangsu Henglihong Technology Co., Ltd. supplies the complete range of abrasive media for graded staircase reduction on titanium SLM parts \u2014 from grit 60 angular Al\u2082O\u2083 for Stage 1 roughness normalization through mesh 220 zirconia beads for precision Stage 3 finishing. Contact our technical team for a media grade recommendation specific to your build parameters and Ra target.<\/p>\n  <a class=\"c-cta-btn\" href=\"https:\/\/hlh-js.com\/contact\/\" target=\"_blank\" rel=\"noopener noreferrer\">Contact Our Technical Team<\/a>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>&#8592; Complete Guide: Abrasive Finishing for Titanium SLM Parts Reducing  [&#8230;]<\/p>","protected":false},"author":1,"featured_media":13991,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[62,175,138],"tags":[],"class_list":["post-13952","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-industry","category-resource"],"_links":{"self":[{"href":"https:\/\/hlh-js.com\/ru\/wp-json\/wp\/v2\/posts\/13952","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hlh-js.com\/ru\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hlh-js.com\/ru\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hlh-js.com\/ru\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hlh-js.com\/ru\/wp-json\/wp\/v2\/comments?post=13952"}],"version-history":[{"count":2,"href":"https:\/\/hlh-js.com\/ru\/wp-json\/wp\/v2\/posts\/13952\/revisions"}],"predecessor-version":[{"id":13954,"href":"https:\/\/hlh-js.com\/ru\/wp-json\/wp\/v2\/posts\/13952\/revisions\/13954"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hlh-js.com\/ru\/wp-json\/wp\/v2\/media\/13991"}],"wp:attachment":[{"href":"https:\/\/hlh-js.com\/ru\/wp-json\/wp\/v2\/media?parent=13952"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hlh-js.com\/ru\/wp-json\/wp\/v2\/categories?post=13952"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hlh-js.com\/ru\/wp-json\/wp\/v2\/tags?post=13952"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}