SLM in Maraging 1.2709

When to choose SLM / DMLS

• Internal conformal channels or lattices that cannot be drilled or milled from outside
• Topology-optimized brackets where as-built surfaces are acceptable or locally machined later
• Consolidating multi-piece weldments into one printed body
• Short-run metal parts where tooling for casting is not justified
• When material options in the SLM catalog (e.g. AlSi10Mg, Ti64, SS) match the drawing

Setup and fixturing

• Orient for minimal support on critical faces; put show surfaces upward or accessible for cut-off
• Anchor to the build plate with support trees sized for thermal stress in the alloy
• Plan powder escape holes for cavities before slicing — sealed voids trap powder
• After build: wire-EDM or saw cut from plate, then support removal benches
• Optional CNC datum skim after heat treat when mating faces need mill flatness

Typical operations

• Layer-wise laser melting with recoater passes across the powder bed
• Support generation and downskin management in the slicer
• Powder reclaim, part cut-off, and mechanical/chemical support removal
• Stress-relief or solution heat treatment per alloy spec (HIP = manual path)
• Local CNC machining of datums, threads, or sealing faces as a hybrid finish

DFM watch-outs

• Thin walls under the SLM risk threshold may not fully consolidate — thicken or reorient
• Overhangs beyond ~45° from +Z need supports; budget removal time and surface scars
• Trapped powder in closed lattices blocks reclaim — add escape ports
• BBox beyond plate limits forces manual quote
• As-built roughness is higher than milled; call out post-machine where seals matter
• Residual stress can warp thin spans — use ribs or heat treat before releasing from plate

Capability

SLM / DMLS builds are additive: a laser selectively melts each powder layer according to sliced contours. Design freedom is the point — organic load paths, conformal cooling, and part consolidation — at the cost of powder handling, supports, and thermal post-processing. Dimensional expectation differs from CNC: tolerances follow the SLM enrich defaults and rates factors, not milled ISO feel, and critical fits usually get a machining stock allowance. Build orientation dominates success; the same CAD file can be easy or impossible depending on tilt and support strategy.

Rates list SLM hourly separately from CNC cells. Support removal and heat-treat batch fees apply from rates; HIP remains manual. Hub price bands come from Batch1 enrich leaves for SLM materials and will not match CNC Al6061 mids — that divergence is real. Keep DFM copy focused on powder, supports, and orientation so SLM hubs never shingle-match CNC process pages.

Rates record SLM at 45/h plus support-removal and heat-treat fees from rates.v1.1. Use those figures on capability cards. SLM mid bands come from SLM leaves — do not paste CNC Al6061 tables onto SLM hubs.

DFM lines for SLM / DMLS

• SLM thin-wall proxy under 0.8 mm (same threshold family as CNC) risks incomplete melt tracks and warp — thicken or orient flat to plate.
• Overhang watch when faces beyond 45° from +Z exceed ~25% of area — expect support and removal cost (SEO SAMPLE_GEOM has no mesh normals → no auto overhang flag).
• Support removal minimum from rates ($15/part); heat-treat batch $40; HIP stays manual quote.
• Sorted bbox beyond SLM plate [250,250,300] mm forces manual quote (auto_manual_quote_if).
• Internal lattices and trapped powder volumes need escape holes ≥ design practice; sealed cavities block powder reclaim.

Maraging steel 1.2709 (SLM)

Maraging 1.2709 (SLM) targets tooling inserts, high-strength brackets, and conformal-cooled tools where hardness after aging matters. Additive workflow includes stress relief and aging heat treats per rates/manual paths — speak tool-steel additive language, not commodity mild steel.

High strength after aging, tool/insert use framing, as-built vs polished cavity notes. Finishes follow enrich for this alloy — often machining + polish on critical cavities.

Supports on downskin; watch residual stress before releasing from plate. CNC finish of shutoffs and datums after heat treat. HIP remains manual when rates say so.

SLM maraging bands from leaves — typically far from aluminum CNC floors; no fabricated tooling-cert adder.

1.2709 SLM: aging heat treat, support removal, CNC shutoff finishing for tooling-like parts.

This alloy hub

Finish compatibility on this hub is framed for a single alloy family: list only finishes that enrich marks compatible with this material_slug. Do not present a cross-material finish menu here — that belongs on industry hubs that span alloys.

Open the properties block with this material’s density, typical temper/condition (when known from catalog), and machining character. The table is alloy-centric: one row set, not a comparison across all Batch1 metals and polymers.

Price band on a process×material hub is the SAMPLE_GEOM band for this one material (often qty1/10 sit on the min-order floor). Say “for this alloy on the sample geometry,” never “across aerospace-to-medical mixes.” Child industries share the same mid until industry is wired into comboQuote.

On SLM material hubs, stay on powder, supports, and heat-treat for this catalog alloy — no industry chrome dump.

Public price range

Aggregated from Batch1 child leaves for this hub (9 pages). USD, rates v1.1, public ±12% on the 50×50×20 mm sample. Compare qty 10 $4177.43 ($3676.14–$4678.72).

SLM maraging bands from leaves — typically far from aluminum CNC floors; no fabricated tooling-cert adder. Price band on a process×material hub is the SAMPLE_GEOM band for this one material (often qty1/10 sit on the min-order floor). Say “for this alloy on the sample geometry,” never “across aerospace-to-medical mixes.” Child industries share the same mid until industry is wired into comboQuote. Some child leaves are mixed, so a band uses only children that published a number. Not a confirmed order price.

Process comparison

Qty 10 public mid is the median of process×material hub mids, with the span of those mids in parentheses. Tolerance labels and finish names come from the hubs-enrich pack. The machine-rate column is the rates card, not a part price.

Material data

Contract fields from the material endpoint. A missing number is unknown, not an estimate.

Finishes

Finishes for Maraging 1.2709 from rates v1.1 only — USD/part adders, not a full quote. Filtered per material compatibility.

• For Maraging 1.2709, Bead Blast (bead_blast) adds $5 USD per part with no batch minimum in rates from rates v1.1 finishes_usd_per_part.
• For Maraging 1.2709, Black Oxide (black_oxide) adds $6 USD per part with no batch minimum in rates from rates v1.1 finishes_usd_per_part.
• For Maraging 1.2709, Powder Coat (powder_coat) adds $12 USD per part with no batch minimum in rates from rates v1.1 finishes_usd_per_part.
• For Maraging 1.2709, Polish (polish) adds $15 USD per part with no batch minimum in rates from rates v1.1 finishes_usd_per_part.
• For Maraging 1.2709, Nickel/Zinc Plate (nickel_or_zinc_plate) adds $10 USD per part with batch minimum $50 from rates v1.1 finishes_usd_per_part.

Questions