Injection Molding
Tooling and molding for your repeat plastic parts.
YOUR REINFORCEMENT. YOUR LAYUP. YOUR FINISHED PART.
Composites for Your Custom Parts
Review composite manufacturing services around the complete reinforcement, resin system, layup, cure and drawing. For machined panels, formed components or composite prototyping, agree material identity, critical interfaces, edge condition and required evidence before comparing quotations.
This is a composite material and manufacturing-scope review. Exact material, tooling, machining, forming and inspection availability require project confirmation; no supplier qualification is transferred to LK MFG.
Full Material SystemKeep reinforcement, resin and lots.
Layup & CureRetain ply schedule and supplied state.
Finished FitDefine holes, edges and interfaces.
Your EvidenceAgree material and part records.
4 Starting Points for Your Composite Review
Glass-Fiber Composite Parts
For GFRP machining, identify the full laminate, reinforcement, resin, thickness and direction. Agree critical holes, edges, support and finished-part inspection.
Carbon Laminate Components
Review the actual cured laminate and controlled layup. A visible weave or carbon fiber grade does not identify every ply, resin or finished property.
Sandwich and Cored Panels
Retain face laminates, core, adhesive, inserts, edge closeouts and joining requirements. Agree the inspected final stack rather than only an overall thickness.
Formed Composite Components
For carbon fiber molding services, review full prepreg or resin/reinforcement system, layup, tooling, cure and acceptance. Manufacturing availability requires project confirmation.
Review Your Reinforcement, Resin and Laminate
Review HEXPly 8552 for Your Drawing
For a HEXPly 8552 custom parts quote, retain the complete prepreg product, reinforcement, resin content, ply format, layup and cure evidence. HEXPly 8552 identifies an epoxy matrix system, not a finished laminate specification by itself.
| Your decision | What to confirm |
|---|---|
| Material identity | Full reinforcement, resin or prepreg product and lots |
| Layup and cure | Ply architecture, sequence, direction, thickness and cure |
| Acceptance | Controlled drawing, approved sample and required tests |
Confirm the Supply Form
Cured panels, prepregs and dry reinforcement need distinct material and process records.
| Your decision | What to confirm |
|---|---|
| Cured Panels and Stock | Identify full laminate or panel producer, reinforcement, resin, layup, cure state, thickness, orientation and lot. Machining a cured blank does not make its original layup or material history interchangeable. |
| Prepreg or Resin and Reinforcement | Retain full products, reinforcement architecture, resin content, storage and handling records, ply sequence, tooling and current cure instructions. Supplier resin or fiber names alone do not specify the finished laminate. |
Agree Your Finished Fit
Retain the actual assembly, environment and measuring condition.
| Your decision | What to confirm |
|---|---|
| Interfaces | Locating shoulders, holes, pockets, fasteners and edge condition |
| Environment | Temperature, moisture, loads and required exposure evidence |
| Measurement | Support, axes, critical dimensions and agreed method |
Retain Material, Layup and Part Records
Supplier material evidence and finished-component acceptance serve different purposes.
| Your decision | What to confirm |
|---|---|
| Identity | Producer, full fiber/resin products, lots, ply schedule and cure |
| Drawing | Critical dimensions, hole positions, flatness and edges |
| Function | Approved sample and specified laminate, nondestructive or assembly tests |
Review TORAY T700S for Your Drawing
TORAY T700S identifies a carbon fiber direction. Retain complete fiber designation, sizing, tow or fabric, resin compatibility, layup and cure. Fiber table properties are not laminate or finished-part allowables.
| Your decision | What to confirm |
|---|---|
| Material identity | Full reinforcement, resin or prepreg product and lots |
| Layup and cure | Ply architecture, sequence, direction, thickness and cure |
| Acceptance | Controlled drawing, approved sample and required tests |
Confirm the Supply Form
Cured panels, prepregs and dry reinforcement need distinct material and process records.
| Your decision | What to confirm |
|---|---|
| Cured Panels and Stock | Identify full laminate or panel producer, reinforcement, resin, layup, cure state, thickness, orientation and lot. Machining a cured blank does not make its original layup or material history interchangeable. |
| Prepreg or Resin and Reinforcement | Retain full products, reinforcement architecture, resin content, storage and handling records, ply sequence, tooling and current cure instructions. Supplier resin or fiber names alone do not specify the finished laminate. |
Agree Your Finished Fit
Retain the actual assembly, environment and measuring condition.
| Your decision | What to confirm |
|---|---|
| Interfaces | Locating shoulders, holes, pockets, fasteners and edge condition |
| Environment | Temperature, moisture, loads and required exposure evidence |
| Measurement | Support, axes, critical dimensions and agreed method |
Retain Material, Layup and Part Records
Supplier material evidence and finished-component acceptance serve different purposes.
| Your decision | What to confirm |
|---|---|
| Identity | Producer, full fiber/resin products, lots, ply schedule and cure |
| Drawing | Critical dimensions, hole positions, flatness and edges |
| Function | Approved sample and specified laminate, nondestructive or assembly tests |
Review TORAY T300 for Your Drawing
TORAY T300 is a named carbon fiber, not a complete cured component. Retain full fiber form and sizing, resin, reinforcement architecture, ply sequence, cure and required part evidence.
| Your decision | What to confirm |
|---|---|
| Material identity | Full reinforcement, resin or prepreg product and lots |
| Layup and cure | Ply architecture, sequence, direction, thickness and cure |
| Acceptance | Controlled drawing, approved sample and required tests |
Confirm the Supply Form
Cured panels, prepregs and dry reinforcement need distinct material and process records.
| Your decision | What to confirm |
|---|---|
| Cured Panels and Stock | Identify full laminate or panel producer, reinforcement, resin, layup, cure state, thickness, orientation and lot. Machining a cured blank does not make its original layup or material history interchangeable. |
| Prepreg or Resin and Reinforcement | Retain full products, reinforcement architecture, resin content, storage and handling records, ply sequence, tooling and current cure instructions. Supplier resin or fiber names alone do not specify the finished laminate. |
Agree Your Finished Fit
Retain the actual assembly, environment and measuring condition.
| Your decision | What to confirm |
|---|---|
| Interfaces | Locating shoulders, holes, pockets, fasteners and edge condition |
| Environment | Temperature, moisture, loads and required exposure evidence |
| Measurement | Support, axes, critical dimensions and agreed method |
Retain Material, Layup and Part Records
Supplier material evidence and finished-component acceptance serve different purposes.
| Your decision | What to confirm |
|---|---|
| Identity | Producer, full fiber/resin products, lots, ply schedule and cure |
| Drawing | Critical dimensions, hole positions, flatness and edges |
| Function | Approved sample and specified laminate, nondestructive or assembly tests |
Review MTM 49-3 for Your Drawing
For an MTM 49-3 custom parts quote, retain the complete Syensqo prepreg product, reinforcement, resin content, layup, storage and out-time records, tooling and cure. Confirm current supplier instructions and final acceptance.
| Your decision | What to confirm |
|---|---|
| Material identity | Full reinforcement, resin or prepreg product and lots |
| Layup and cure | Ply architecture, sequence, direction, thickness and cure |
| Acceptance | Controlled drawing, approved sample and required tests |
Confirm the Supply Form
Cured panels, prepregs and dry reinforcement need distinct material and process records.
| Your decision | What to confirm |
|---|---|
| Cured Panels and Stock | Identify full laminate or panel producer, reinforcement, resin, layup, cure state, thickness, orientation and lot. Machining a cured blank does not make its original layup or material history interchangeable. |
| Prepreg or Resin and Reinforcement | Retain full products, reinforcement architecture, resin content, storage and handling records, ply sequence, tooling and current cure instructions. Supplier resin or fiber names alone do not specify the finished laminate. |
Agree Your Finished Fit
Retain the actual assembly, environment and measuring condition.
| Your decision | What to confirm |
|---|---|
| Interfaces | Locating shoulders, holes, pockets, fasteners and edge condition |
| Environment | Temperature, moisture, loads and required exposure evidence |
| Measurement | Support, axes, critical dimensions and agreed method |
Retain Material, Layup and Part Records
Supplier material evidence and finished-component acceptance serve different purposes.
| Your decision | What to confirm |
|---|---|
| Identity | Producer, full fiber/resin products, lots, ply schedule and cure |
| Drawing | Critical dimensions, hole positions, flatness and edges |
| Function | Approved sample and specified laminate, nondestructive or assembly tests |
Keep Fiber Reference Data Separate From Laminate Approval
Supplier-listed typical fiber tensile strength, MPa · Toray standard-modulus fiber product table
Fiber Tensile Strength (MPa)
Fiber reference values, not cured-laminate data, design allowables or a finished-part ranking. Confirm full fiber designation, sizing and test conditions, then validate the actual resin, reinforcement architecture, layup, cure and component.
Supplier fiber table →2 Purchasing Routes. Different Material Evidence.
Cured Panels and Stock
Identify full laminate or panel producer, reinforcement, resin, layup, cure state, thickness, orientation and lot. Machining a cured blank does not make its original layup or material history interchangeable.
Prepreg or Resin and Reinforcement
Retain full products, reinforcement architecture, resin content, storage and handling records, ply sequence, tooling and current cure instructions. Supplier resin or fiber names alone do not specify the finished laminate.
Resolve 6 Composite Part Risks
Layup & direction for Your Finished Part
How should a composite layup schedule be supplied? Define ply material, sequence, angle, reference axes, symmetry where required, local reinforcements, core and inserts. Retain revision control and required cure evidence.
Delamination & defects for Your Finished Part
For composite delamination, agree the permitted location, extent and inspection method. How should composite delamination be accepted or rejected? Use drawing-specific criteria, approved samples and any specified nondestructive evidence; a surface photograph alone does not approve internal quality.
Holes & inserts for Your Finished Part
Review hole diameter, position, countersinks, thickness, fiber direction, support, inserts and load introduction. Agree final hole and interface inspection rather than transferring a metal machining assumption.
Trimmed edges & fibers for Your Finished Part
Specify the permitted edge breakout, exposed fibers, ply separation and finishing condition. Retain final dimensions and repeatable visual or specified inspection evidence for the actual laminate.
Fit, bonding & cure state for Your Finished Part
Agree mating components, adhesive or fastener system, surface preparation, cure condition and assembly requirements. Composite prototyping only validates the checks agreed for its material, layup and manufacturing state.
Material & part records for Your Finished Part
For composite material certification, agree full reinforcement and resin/prepreg identifiers, lots, layup revision, handling and cure records when required. Keep material evidence, dimensions and structural or functional approval separate.
Match the Route to Your Composite Part
Cured Composite Machining
Review laminate identity, layup, thickness, holes, support and edge acceptance.
Review requirements →
Forming and Cure Review
For carbon fiber molding services, review full material, tooling, layup, handling, cure and project availability.
Review requirements ↓
Prototype and Fit Review
Define what your prototype represents in material, layup, cure, geometry and agreed tests.
Review requirements →Composite manufacturing scope and material availability require project confirmation; no supplier or aerospace qualification is implied.
Agree 3 Checks for Your Receiving Team
| Your check | Evidence to agree |
|---|---|
| 1 | Full fiber and resin/prepreg products, producer, sizing or reinforcement form, lots and material history. |
| 2 | Controlled layup, cure state, drawing, thickness, hole positions, interfaces and edge condition. |
| 3 | Approved sample, agreed composite material certification and specified nondestructive, mechanical or assembly evidence. |
6 Inputs for Your Composite Quote
- 01CAD + controlled drawing
- 02Full reinforcement + resin/prepreg products
- 03Layup + directions + thickness + cure
- 04Quantities + critical dimensions + interfaces
- 05Hole position + flatness + edge acceptance
- 06Material records + required tests + delivery
Material · Tooling and cure · Machining · Edges · Quantity · Inspection · Delivery
Answers Before You Specify
What is needed for a custom composite parts quote?
Send CAD and controlled drawing, complete laminate or prepreg system, layup schedule, quantities, tooling scope, cure and handling requirements, critical holes and interfaces, edge criteria and required tests. A composite machining quote needs the actual cured blank and final inspection scope.
Is a carbon fiber grade a complete laminate specification?
No. Specify reinforcement form and sizing, resin system and content, ply sequence and angles, thickness, cure and relevant records. The fiber designation alone does not define the cured laminate.
How should a composite layup schedule be supplied?
Provide a controlled ply table with material, sequence, orientation and reference axes, plus local reinforcements, core, inserts, tooling references and cure or acceptance requirements.
Can a cured composite panel be machined to final dimensions?
Review the exact panel, thickness, layup, orientation, stock allowance, hole and edge requirements first. Agree process scope and inspection without assuming the blank or final part is interchangeable with another laminate.
How should composite delamination be accepted or rejected?
Agree the location, extent, defect type and inspection method against the drawing. Retain approved samples and any specified nondestructive or functional evidence; a generic no-visible-defect statement is incomplete.
Can T700S replace T300 without laminate validation?
Do not approve the change from a fiber-strength comparison. Review full fiber product and sizing, resin, architecture, layup, cure, interfaces and required laminate or finished-part validation, then document approval.
Retain Your Full Material, Layup and Cure Specification
| Reference | What it does and does not identify |
|---|---|
| GFRP / CFRP | Glass- or carbon-fiber reinforced polymer direction; retain full reinforcement, resin and layup. |
| TORAY T300 / T700S | Named carbon fibers; not complete laminate or finished-part specifications. |
| HEXPly 8552 / MTM 49-3 | Named epoxy matrix/prepreg system references; retain the exact reinforcement/product format and cure. |
| Cured laminate / sandwich assembly | Retain ply sequence, direction, thickness, core, inserts, adhesive and required acceptance records. |
Retain the required standards and manufacturer records rather than inventing an EN/DIN equivalent or an automatic product substitution.
Product references: Toray, Hexcel and Syensqo manufacturer information. Generated concepts illustrate geometry, not actual customer parts, certified materials or company records.
