{"id":13964,"date":"2026-08-05T06:10:57","date_gmt":"2026-08-05T06:10:57","guid":{"rendered":"https:\/\/hlh-js.com\/?p=13964"},"modified":"2026-08-05T06:10:57","modified_gmt":"2026-08-05T06:10:57","slug":"abrasive-finishing-titanium-slm-orthopedic-implants-ra-targets-contamination-control-and-iso-13485","status":"publish","type":"post","link":"https:\/\/hlh-js.com\/es\/resource\/blog\/abrasive-finishing-titanium-slm-orthopedic-implants-ra-targets-contamination-control-and-iso-13485\/","title":{"rendered":"Abrasive Finishing Titanium SLM Orthopedic Implants: Ra Targets, Contamination Control, and ISO 13485"},"content":{"rendered":"<!-- hlh-tis-c07.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 Neue',Arial,sans-serif;font-size:16px;line-height:1.8;color:#374151;max-width:920px;margin:0 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type=\"application\/ld+json\">{\n    \"@context\": \"https:\\\/\\\/schema.org\",\n    \"@graph\": [\n        {\n            \"@type\": \"Article\",\n            \"headline\": \"Abrasive Finishing Titanium SLM Orthopedic Implants: Ra Targets, Contamination Control, and ISO 13485\",\n            \"description\": \"A comprehensive technical guide to abrasive finishing of titanium SLM orthopedic and dental implants \\u2014 Ra targets for osseointegration, the SLA process adapted for SLM, contamination control protocols, ISO 13485 special process validation, and lattice structure finishing.\",\n            \"url\": \"https:\\\/\\\/hlh-js.com\\\/resource\\\/blog\\\/abrasive-finishing-titanium-slm-orthopedic-implants-ra-targets-contamination-control-and-iso-13485\\\/\",\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\": \"What Ra is required for titanium SLM dental implants vs. orthopedic implants?\",\n                    \"acceptedAnswer\": {\n                        \"@type\": \"Answer\",\n                        \"text\": \"Dental implants (root-form, immediately loaded or conventionally healed) typically target Ra 1.5\\u20133.0 \\u03bcm on the bone-contact threaded surface, with the SLA process (blast + acid etch) producing the characteristic multi-scale topography that clinical studies associate with maximum BIC rates. Orthopedic implants have somewhat broader Ra targets: Ra 1.0\\u20133.0 \\u03bcm is common for cementless acetabular cups and tibial trays, Ra 1.0\\u20134.0 \\u03bcm for spinal fusion cage surfaces, and Ra 1.0\\u20132.5 \\u03bcm for hip stem primary fixation zones. The specific Ra target should be defined in the implant\\u2019s Design History File (DHF) based on the clinical evidence supporting the design, and the finishing process must be validated to consistently achieve that specification.\"\n                    }\n                },\n                {\n                    \"@type\": \"Question\",\n                    \"name\": \"How do I validate a blast process under ISO 13485 for titanium SLM implants?\",\n                    \"acceptedAnswer\": {\n                        \"@type\": \"Answer\",\n                        \"text\": \"Validation follows the IQ\\\/OQ\\\/PQ sequence. IQ documents equipment installation and calibration. OQ establishes that defined process parameters produce Ra within the target window across the worst-case operating conditions (minimum pressure, maximum standoff, minimum dwell, oldest media within recycling limit). PQ demonstrates consistent performance across three independent lots of production-representative parts. Each stage produces a formal protocol and report. Process parameters and acceptance criteria are fixed after OQ and cannot be changed without triggering re-validation. The validation package \\u2014 including all protocols, reports, and calibration records \\u2014 is maintained as part of the Device Master Record (DMR) and is available for regulatory audit.\"\n                    }\n                },\n                {\n                    \"@type\": \"Question\",\n                    \"name\": \"Can a non-NADCAP shop finish titanium SLM medical implants?\",\n                    \"acceptedAnswer\": {\n                        \"@type\": \"Answer\",\n                        \"text\": \"NADCAP accreditation is specifically required for aerospace special processes under major defense and commercial aerospace OEM contracts, not for medical device manufacturing. Medical device finishing facilities must comply with ISO 13485 quality management system requirements (and applicable regulatory requirements of their target markets \\u2014 FDA 21 CFR Part 820, EU MDR Annex IX\\\/X, etc.), but NADCAP accreditation is not specifically required. The medical device industry has its own special process control framework under ISO 13485, which is what regulators and medical device OEMs assess. A non-NADCAP shop that is ISO 13485 certified and can demonstrate validated finishing processes with full traceability documentation is appropriately qualified for medical implant finishing work.\"\n                    }\n                },\n                {\n                    \"@type\": \"Question\",\n                    \"name\": \"Is vibratory finishing an alternative to blasting for titanium SLM orthopedic implants?\",\n                    \"acceptedAnswer\": {\n                        \"@type\": \"Answer\",\n                        \"text\": \"Vibratory finishing with ceramic chip media is a valid alternative to directional blasting for internal lattice surfaces and for parts where the complex geometry prevents uniform blast coverage. It is widely used in the dental implant industry for processing large batches of root-form implants efficiently. The limitations compared to blasting are: longer process times (30\\u201390 minutes vs. 5\\u201315 minutes for blast), less precise Ra control (harder to hit a specific Ra window consistently across different feature types in the same part), and difficulty achieving the Ra 1.5\\u20133.0 \\u03bcm target on a single batch pass for parts with very heavy as-built roughness on some surfaces. Many titanium SLM implant finishers use a combination: directional wet blast for accessible primary surfaces and vibratory finishing for internal lattice or complex secondary surfaces.\"\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>Abrasive Finishing Titanium SLM Orthopedic Implants: Ra Targets, Contamination Control, and ISO 13485<\/h1>\n<div class=\"c-meta\">\n  <span><strong>Por<\/strong> Jiangsu Henglihong Technology Co., Ltd.<\/span>\n  <span><strong>Updated:<\/strong> August 2026<\/span>\n  <span><strong>Topic:<\/strong> Titanium SLM orthopedic implant surface finishing Ra targets ISO 13485<\/span>\n<\/div>\n<p class=\"c-lead\">Titanium SLM implants present the most demanding abrasive finishing requirements in the field: tight Ra tolerances for osseointegration, zero-tolerance contamination requirements under ISO 10993, and complex internal lattice geometries that standard blast equipment cannot uniformly reach. Getting this process right means the difference between an implant that integrates reliably and one that fails regulatory review or clinical assessment. This guide provides the technical framework for validated, compliant abrasive finishing of titanium SLM orthopedic and dental implants.<\/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-clinical\">Surface Finish as a Clinical Variable for Titanium SLM Implants<\/a><\/li>\n    <li><a href=\"#sec-ra\">Ra Targets for Osseointegration: The Evidence Base<\/a><\/li>\n    <li><a href=\"#sec-sla\">The SLA Surface Process Adapted for SLM Titanium<\/a><\/li>\n    <li><a href=\"#sec-contam\">Contamination Control: The Zero-Iron Protocol<\/a><\/li>\n    <li><a href=\"#sec-iso\">ISO 13485 Special Process Validation<\/a><\/li>\n    <li><a href=\"#sec-lattice\">Lattice Structure Finishing: The Access Problem<\/a><\/li>\n    <li><a href=\"#sec-faq\">Preguntas frecuentes<\/a><\/li>\n  <\/ol>\n<\/nav>\n\n<h2 id=\"sec-clinical\">1. Surface Finish as a Clinical Variable for Titanium SLM Implants<\/h2>\n<p>For decades, the clinical performance of titanium implants was attributed primarily to material properties: biocompatibility, osseointegration chemistry, and mechanical match to bone. Surface topography was considered a manufacturing detail rather than a clinical variable. This view changed fundamentally in the 1990s and 2000s with controlled clinical studies demonstrating that surface roughness at the micro-scale (1\u201310 &#956;m Ra) is an independent determinant of early bone-to-implant contact (BIC) rate, implant stability during healing, and long-term fixation quality.<\/p>\n<p>As of August 2026, titanium SLM implants are an established and rapidly growing segment of the orthopedic and dental device markets. Spinal fusion cages, tibial trays, acetabular cups, hip stems, and root-form dental implants are all produced by SLM in commercial quantities. The SLM process enables clinically advantageous features: patient-specific geometry matching from CT scans, porous trabecular lattice structures that promote bone ingrowth, and customized stiffness profiles that reduce stress shielding. But the as-built SLM surface \u2014 with Ra 5\u201320 &#956;m, satellite particles, and potential alpha-case \u2014 is far from the optimized micro-topography required for maximum osseointegration. Abrasive finishing is the process that bridges the gap between the SLM build and the clinically effective surface. This article is part of the series on <a href=\"https:\/\/hlh-js.com\/resource\/blog\/abrasive-finishing-titanium-slm-parts-complete-guide\/\" target=\"_blank\" rel=\"noopener noreferrer\">abrasive finishing for titanium SLM parts<\/a>.<\/p>\n\n<h2 id=\"sec-ra\">2. Ra Targets for Osseointegration: The Evidence Base<\/h2>\n<p>The Ra 1\u20134 &#956;m range for optimal osseointegration is supported by an extensive body of in vitro and in vivo research. At the cellular level, osteoblasts (bone-forming cells) respond to surface topography through a phenomenon called contact guidance: the cells sense surface features in the 1\u201310 &#956;m range through integrin-mediated mechanosensing, aligning their cytoskeleton and focal adhesion complexes to surface geometry. Surfaces in the Ra 1\u20134 &#956;m range provide the optimal scale of features for this response, maximizing cell attachment area and focal adhesion formation.<\/p>\n<p>In animal and clinical studies, titanium implants in the Ra 1\u20134 &#956;m range consistently show higher bone-to-implant contact (BIC) percentages at early time points (4\u20138 weeks post-implantation) compared to smoother (Ra &lt;0.5 &#956;m) or rougher (Ra &gt;6 &#956;m) surfaces. The clinical significance is greatest for implants bearing load during the healing phase \u2014 tibial trays in cementless total knee arthroplasty and dental implants placed with immediate loading protocols, for example \u2014 where early osseointegration quality directly determines clinical outcome.<\/p>\n<div class=\"c-tbl\">\n<table>\n  <thead><tr><th>Implant Type<\/th><th>Ra Target<\/th><th>Rz (indicative)<\/th><th>Key Process<\/th><\/tr><\/thead>\n  <tbody>\n    <tr><td>Dental root-form (SLA)<\/td><td>1.5\u20133.0 &#956;m<\/td><td>10\u201320 &#956;m<\/td><td>Blast + acid etch sequence<\/td><\/tr>\n    <tr><td>Orthopedic porous cup<\/td><td>1.0\u20133.0 &#956;m<\/td><td>8\u201320 &#956;m<\/td><td>Blast (wet, zirconia beads)<\/td><\/tr>\n    <tr><td>Spinal cage lattice surface<\/td><td>1.0\u20134.0 &#956;m<\/td><td>8\u201325 &#956;m<\/td><td>Wet blast or vibratory finish<\/td><\/tr>\n    <tr><td>Tibial tray bone-contact face<\/td><td>1.0\u20133.0 &#956;m<\/td><td>8\u201320 &#956;m<\/td><td>Blast + confirm no satellite<\/td><\/tr>\n    <tr><td>Hip stem primary fixation<\/td><td>1.0\u20132.5 &#956;m<\/td><td>8\u201316 &#956;m<\/td><td>Wet blast (zirconia 150 mesh)<\/td><\/tr>\n  <\/tbody>\n<\/table>\n<\/div>\n\n<h2 id=\"sec-sla\">3. The SLA Surface Process Adapted for SLM Titanium<\/h2>\n<p>The SLA (Sand-blasted, Large grit, Acid-etched) surface process was developed in the 1990s for machined titanium dental implants and remains the clinical gold standard for root-form dental implants based on extensive long-term clinical data. The standard SLA process on a machined implant blank applies coarse Al&#8322;O&#8123; blasting (grit 100\u2013220, depending on the implant company) to create macro-roughness in the Ra 2\u20134 &#956;m range, followed by etching in a mixed hydrochloric\/sulfuric acid solution (or pure H&#8322;SO&#8322;\/HCl mixture at elevated temperature) to create micro-roughness at the 0.5\u20131.5 &#956;m scale superimposed on the blast macro-topography.<\/p>\n<p>Adapting SLA to SLM titanium implants requires modifying the blasting stage, because the SLM as-built surface already has macroroughness (Ra 5\u201318 &#956;m) that significantly exceeds the Ra target for the post-blast, pre-etch surface (typically Ra 2\u20134 &#956;m). Simply applying the standard SLA blast protocol to an SLM blank will not achieve the required intermediate surface state, because the blast protocol was calibrated for a smooth machined starting surface. Instead, the blast stage must be calibrated against the specific SLM as-built Ra baseline for each part design and build orientation, using wet blasting with fine zirconia or glass beads at controlled pressure to reduce Ra from the as-built range to the SLA intermediate target before etching.<\/p>\n<p>The acid etch stage \u2014 typically 30\u201360 minutes in a hydrochloric\/sulfuric acid mixture at 60\u201380&#176;C \u2014 is applied after the blast stage is complete and verified. The etch is applied uniformly and produces a micro-pit topography with a characteristic nodular appearance visible by SEM. This micro-topography is the surface that osteoblasts colonize, and it is superimposed on the macro-roughness established by blasting. The combination produces the multi-scale roughness (macro + micro) that clinical studies associate with optimal osseointegration.<\/p>\n\n<h2 id=\"sec-contam\">4. Contamination Control: The Zero-Iron Protocol<\/h2>\n<p>For titanium SLM implant finishing, iron contamination is not a risk to be managed \u2014 it is a condition to be prevented absolutely. ISO 10993 biocompatibility evaluation includes extractable metal analysis that will identify and quantify iron contamination on implant surfaces. Regulatory bodies in the EU (MDR compliance) and US (FDA 510(k) and PMA submissions) have challenged implant technical files that do not demonstrate adequate contamination control in the finishing process.<\/p>\n<p>The zero-iron protocol for implant-grade titanium SLM finishing has four elements. First, blast media must be zirconia (preferred) or glass beads with supplier XRF certification confirming Fe&#8322;O&#8323; content below 0.02% by weight. Aluminum oxide may be used for initial rough stages but not for final finish blast. Second, all blast equipment (cabinet, pot, gun, nozzle) must be dedicated to titanium and non-ferrous alloys \u2014 never shared with ferrous metals including stainless steel. Third, all part-contact handling fixtures must be aluminum or approved polymer \u2014 never uncoated steel. Fourth, post-blast cleaning must include nitric acid passivation per AMS 2700 Method 1, followed by ferroxyl test verification that passes (no blue spots) before the part is released for further processing.<\/p>\n<div class=\"c-link\"><div class=\"c-link-ic\">&#8594;<\/div><p>For the complete contamination prevention protocol, including media certification requirements and equipment management procedures, see our guide on <a href=\"https:\/\/hlh-js.com\/resource\/blog\/preventing-iron-and-foreign-material-contamination-when-abrasive-blasting-titanium-slm-parts\/\" target=\"_blank\" rel=\"noopener noreferrer\">preventing iron and foreign material contamination when abrasive blasting titanium SLM parts<\/a>.<\/p><\/div>\n\n<h2 id=\"sec-iso\">5. ISO 13485 Special Process Validation<\/h2>\n<p>ISO 13485 (Quality Management Systems for Medical Devices) classifies surface finishing as a special process \u2014 a process whose output cannot be fully verified by subsequent inspection and testing, because the surface quality produced by blasting depends on controlling the process inputs rather than measuring all outputs on 100% of parts. Special processes must be validated before production use and revalidated periodically or after significant process changes.<\/p>\n<p>Validation follows the IQ\/OQ\/PQ sequence. Installation Qualification (IQ) documents that the blast equipment is correctly installed, calibrated, and operates within its specification. Operational Qualification (OQ) demonstrates that defined process parameters (media type, mesh, pressure, standoff, angle, dwell time, nozzle size) consistently produce Ra within the target window across the range of production conditions. Performance Qualification (PQ) proves that the validated process reliably and repeatably produces parts meeting the full acceptance criteria \u2014 Ra, contamination-free surface, absence of satellite particles \u2014 across multiple independent production lots.<\/p>\n<p>Validation documentation must define: the process parameters and their control limits, the acceptance criteria and measurement methods, the equipment identity and calibration requirements, the operator qualification requirements (training records), and the revalidation triggers (media batch change, equipment repair, process parameter change, extended process gap). All validation records are retained in the Device History Record (DHR) and are subject to regulatory audit.<\/p>\n\n<h2 id=\"sec-lattice\">6. Lattice Structure Finishing: The Access Problem<\/h2>\n<p>SLM enables internal trabecular lattice structures in tibial trays, acetabular cups, and spinal cages that promote bone ingrowth through their open-cell geometry. The lattice cell openings \u2014 typically 500\u20131,200 &#956;m in diameter for bone ingrowth applications \u2014 create an access challenge for abrasive blasting: the blast nozzle cannot see the internal strut surfaces, and standard directional dry blast with 100\u2013200 &#956;m beads cannot guarantee uniform coverage inside the lattice.<\/p>\n<p>Wet blasting with fine zirconia or glass beads (mesh 150\u2013220, mean particle size 65\u201395 &#956;m, well below the lattice cell opening) provides the best coverage of internal lattice surfaces when the slurry is flowed through the lattice under controlled pressure. For acetabular cups with open trabecular structures, a dedicated wet blast fixture that holds the cup at a defined angle and directs slurry flow through the porous section under 20\u201340 PSI air pressure for 5\u201310 minutes achieves uniform coverage of internal strut surfaces.<\/p>\n<p>For fully enclosed lattice volumes (lattice infill with no macroscopic through-channel), neither directional wet blast nor dry blast can reach internal struts. Vibratory finishing with fine ceramic chip media (2\u20135 mm length, hardness 8 Mohs) in a vibrating bowl is the standard alternative: the media tumbles through and around the open lattice cells over 30\u201360 minutes at controlled frequency (50\u201360 Hz) and amplitude, contacting internal strut surfaces and reducing Ra from the as-built range (5\u201318 &#956;m) to approximately 1.5\u20134 &#956;m \u2014 within the osseointegration window for most lattice implant designs.<\/p>\n\n<h2 id=\"sec-faq\">Preguntas frecuentes<\/h2>\n<div class=\"c-faq\">\n  <div class=\"c-faq-item\">\n    <input type=\"checkbox\" id=\"faq07a\" class=\"c-faq-chk\">\n    <label class=\"c-faq-q\" for=\"faq07a\">What Ra is required for titanium SLM dental implants vs. orthopedic implants?<span class=\"c-faq-ic\">+<\/span><\/label>\n    <div class=\"c-faq-a\"><p>Dental implants (root-form, immediately loaded or conventionally healed) typically target Ra 1.5\u20133.0 \u03bcm on the bone-contact threaded surface, with the SLA process (blast + acid etch) producing the characteristic multi-scale topography that clinical studies associate with maximum BIC rates. Orthopedic implants have somewhat broader Ra targets: Ra 1.0\u20133.0 \u03bcm is common for cementless acetabular cups and tibial trays, Ra 1.0\u20134.0 \u03bcm for spinal fusion cage surfaces, and Ra 1.0\u20132.5 \u03bcm for hip stem primary fixation zones. The specific Ra target should be defined in the implant\u2019s Design History File (DHF) based on the clinical evidence supporting the design, and the finishing process must be validated to consistently achieve that specification.<\/p><\/div>\n  <\/div>\n  <div class=\"c-faq-item\">\n    <input type=\"checkbox\" id=\"faq07b\" class=\"c-faq-chk\">\n    <label class=\"c-faq-q\" for=\"faq07b\">How do I validate a blast process under ISO 13485 for titanium SLM implants?<span class=\"c-faq-ic\">+<\/span><\/label>\n    <div class=\"c-faq-a\"><p>Validation follows the IQ\/OQ\/PQ sequence. IQ documents equipment installation and calibration. OQ establishes that defined process parameters produce Ra within the target window across the worst-case operating conditions (minimum pressure, maximum standoff, minimum dwell, oldest media within recycling limit). PQ demonstrates consistent performance across three independent lots of production-representative parts. Each stage produces a formal protocol and report. Process parameters and acceptance criteria are fixed after OQ and cannot be changed without triggering re-validation. The validation package \u2014 including all protocols, reports, and calibration records \u2014 is maintained as part of the Device Master Record (DMR) and is available for regulatory audit.<\/p><\/div>\n  <\/div>\n  <div class=\"c-faq-item\">\n    <input type=\"checkbox\" id=\"faq07c\" class=\"c-faq-chk\">\n    <label class=\"c-faq-q\" for=\"faq07c\">Can a non-NADCAP shop finish titanium SLM medical implants?<span class=\"c-faq-ic\">+<\/span><\/label>\n    <div class=\"c-faq-a\"><p>NADCAP accreditation is specifically required for aerospace special processes under major defense and commercial aerospace OEM contracts, not for medical device manufacturing. Medical device finishing facilities must comply with ISO 13485 quality management system requirements (and applicable regulatory requirements of their target markets \u2014 FDA 21 CFR Part 820, EU MDR Annex IX\/X, etc.), but NADCAP accreditation is not specifically required. The medical device industry has its own special process control framework under ISO 13485, which is what regulators and medical device OEMs assess. A non-NADCAP shop that is ISO 13485 certified and can demonstrate validated finishing processes with full traceability documentation is appropriately qualified for medical implant finishing work.<\/p><\/div>\n  <\/div>\n  <div class=\"c-faq-item\">\n    <input type=\"checkbox\" id=\"faq07d\" class=\"c-faq-chk\">\n    <label class=\"c-faq-q\" for=\"faq07d\">Is vibratory finishing an alternative to blasting for titanium SLM orthopedic implants?<span class=\"c-faq-ic\">+<\/span><\/label>\n    <div class=\"c-faq-a\"><p>Vibratory finishing with ceramic chip media is a valid alternative to directional blasting for internal lattice surfaces and for parts where the complex geometry prevents uniform blast coverage. It is widely used in the dental implant industry for processing large batches of root-form implants efficiently. The limitations compared to blasting are: longer process times (30\u201390 minutes vs. 5\u201315 minutes for blast), less precise Ra control (harder to hit a specific Ra window consistently across different feature types in the same part), and difficulty achieving the Ra 1.5\u20133.0 \u03bcm target on a single batch pass for parts with very heavy as-built roughness on some surfaces. Many titanium SLM implant finishers use a combination: directional wet blast for accessible primary surfaces and vibratory finishing for internal lattice or complex secondary surfaces.<\/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 zirconia beads, certified glass beads, and fine aluminum oxide specifically formulated for titanium SLM medical implant finishing \u2014 with batch XRF certification and full supply chain traceability for ISO 13485 documentation requirements. Contact our technical team to discuss your implant-grade media specifications.<\/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 Abrasive  [&#8230;]<\/p>","protected":false},"author":1,"featured_media":13995,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[62,175,138],"tags":[],"class_list":["post-13964","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-industry","category-resource"],"_links":{"self":[{"href":"https:\/\/hlh-js.com\/es\/wp-json\/wp\/v2\/posts\/13964","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hlh-js.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hlh-js.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hlh-js.com\/es\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hlh-js.com\/es\/wp-json\/wp\/v2\/comments?post=13964"}],"version-history":[{"count":2,"href":"https:\/\/hlh-js.com\/es\/wp-json\/wp\/v2\/posts\/13964\/revisions"}],"predecessor-version":[{"id":13966,"href":"https:\/\/hlh-js.com\/es\/wp-json\/wp\/v2\/posts\/13964\/revisions\/13966"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hlh-js.com\/es\/wp-json\/wp\/v2\/media\/13995"}],"wp:attachment":[{"href":"https:\/\/hlh-js.com\/es\/wp-json\/wp\/v2\/media?parent=13964"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hlh-js.com\/es\/wp-json\/wp\/v2\/categories?post=13964"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hlh-js.com\/es\/wp-json\/wp\/v2\/tags?post=13964"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}