OEM Tool Steel CNC Turned and Milled Parts Supplier

XCM CNC provides OEM tool steel CNC turning and milling for build-to-print parts, with grade review across SKD11, DC53, S136, and P20 based on wear resistance, dimensional stability, and finishing route.

For mold inserts, locating pins, fixture jaws, and wear blocks, the sample stage confirms pre- and post-heat-treatment sequencing, grinding allowance, fit bores, and edge requirements before repeat production starts. The factory uses equipment such as DMG and Mazak machines, supports ISO 9001 and IATF 16949 system requirements, and accepts MOQ from 1 piece.

Machining Parameters and Tolerances

Fit Bore and Locating Pin Tolerance for OEM Tool Steel Assemblies

Fit bores on tool steel OEM parts can be reviewed to H7 with bore tolerance around +/-0.005 mm, while hole-group position can stay around 0.015 mm. Multi-step outer diameters on locating pins and insert bodies can hold coaxiality around 0.012 mm when turning is completed in one clamping setup. Selected fit surfaces on SKD11 and DC53 parts can be evaluated around +/-0.003 mm, with CMM and FAI reporting prepared before release.

Heat-Treatment Sequence and Grinding Allowance Planning

After quenching, tool steel parts often move into a hardness range around HRC 58-62, so precision faces need grinding allowance reserved in advance. Ground faces can reach around Ra 0.4 um, while fit surfaces can be restored around +/-0.003 mm through precision grinding after heat treatment. The sample stage confirms rough-machining stock, heat-treatment order, and finish locations before fit bores are rechecked.

Narrow Slot and Deep Cavity Machining for Tool Steel Inserts

Tool steel narrow slots can be reviewed down to about 0.3 mm width, while deep cavities can reach depth-to-width ratios around 4:1 and up to 5:1 with extended tooling. Minimum inside corner radius around R0.5 mm is limited by end-mill size, and cavities near 40 mm depth are safer with inside radii of R1.0 mm or more. Insert slots, cavities, and wear-block recesses are reviewed by toolpath and chip-removal feasibility before cutting begins.

GD&T Control and CMM Inspection for Mating Features

Tool steel OEM parts can be evaluated around 0.02 mm perpendicularity over 1000 mm and 0.03 mm parallelism over 1030 mm datum length. Circular runout around 0.01 mm suits rotating shafts, while total runout around 0.012 mm can be checked on tighter transmission parts. Inspection uses Hexagon CMM and TRIMOS 600L height-gauge support so each critical GD&T feature can be reported separately.

Systems and Equipment Support Are Structured for Tool Steel Projects

XCM CNC can organize projects under ISO 9001, ISO 13485, IATF 16949, and GJB9001C quality-system requirements while assigning machining routes across brands such as DMG, Mazak, Matsuura, and Brother. For tool steel OEM parts, that helps keep heat treatment, finish correction, and critical-surface reinspection inside one coordinated process.

Size Coverage Supports Roughing, Heat Treatment, and Finish Work in One Route

Three-axis milling travel reaches 3000 x 1600 x 1400 mm and turning diameter reaches 1250 mm. For mold inserts, wear blocks, and tooling bases, that coverage helps keep roughing, heat treatment, and later finish work planned within the same order flow.

Tiered Equipment Strategy for Cost and Precision

XCM CNC uses CNC resources from mainland China, Taiwan, Japan, and Europe or the US. Lower-tolerance operations can run on domestic or Taiwan machines, while tighter dimensions move to imported equipment such as DMG or Mazak so simple features do not consume high-cost precision capacity unnecessarily.

Sample Approval Locks Edges and Mating Surfaces Before Batch Release

For punches, dies, locating pins, and wear blocks, the sample stage confirms edge condition, fit bores, and grinding allowance first. Version updates and finish plans are handled before batch transfer so later rework loops are reduced.

Pre- and Post-Heat-Treatment Operations Stay Aligned

The way quenching, hard machining, wire cutting, and grinding are sequenced directly affects lead time and cost. Confirming stock allowance and reinspection points during sample review helps batch production follow the approved route without reversed process order or avoidable rework.